Feat: update CHANGELOG.md

This reverts commit 1513d80a8d.

.cargo/config.toml

@@ -0,0 +1,5 @@
+[env]
+MACOSX_DEPLOYMENT_TARGET = "12.0"
+
+[alias]
+xtask = "run --package xtask --release --"

.gitea/workflows/deploy-website.yml

@@ -0,0 +1,39 @@
+name: Deploy Website
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'website/**'
+  workflow_dispatch:
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4.2.2
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4.1.0
+        with:
+          version: 9
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4.4.0
+        with:
+          node-version: 22
+
+      - name: Install dependencies
+        working-directory: website
+        run: pnpm install
+
+      - name: Build
+        working-directory: website
+        run: pnpm build
+
+      - name: Deploy to host volume
+        run: |
+          rm -rf /home/debian/my-services/data/cagire-website/*
+          cp -r website/dist/* /home/debian/my-services/data/cagire-website/
+

.gitignore

@@ -1,4 +1,12 @@
 /target
-Cargo.lock
+/.cache
 *.prof
 .DS_Store
+releases/
+
+# Local cargo overrides (doux path patch)
+.cargo/config.local.toml
+
+# Claude
+.claude/
+CLAUDE.md

BUILDING.md

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+# Building Cagire
+
+## Quick Start
+
+```bash
+git clone https://git.raphaelforment.fr/BuboBubo/cagire
+cd cagire
+cargo build --release
+```
+
+The `doux` audio engine is fetched automatically from git. No local path setup needed.
+
+## Prerequisites
+
+**Rust** (stable toolchain): https://rustup.rs
+
+## System Dependencies
+
+### macOS
+
+```bash
+brew install cmake
+```
+
+cmake is required by `rusty_link` (Ableton Link C++ bindings). Xcode Command Line Tools provide the C++ compiler. CoreAudio and CoreMIDI are built-in. The desktop build needs no additional dependencies on macOS (Cocoa/Metal are provided by the system).
+
+### Linux (Debian/Ubuntu)
+
+```bash
+sudo apt install cmake g++ pkg-config libasound2-dev libjack-jackd2-dev
+```
+
+For the desktop build (egui/eframe), also install:
+
+```bash
+sudo apt install libgl-dev libxkbcommon-dev libx11-dev libxcursor-dev libxrandr-dev libxi-dev libwayland-dev
+```
+
+### Linux (Arch)
+
+```bash
+sudo pacman -S cmake gcc pkgconf alsa-lib jack2
+```
+
+For the desktop build:
+
+```bash
+sudo pacman -S libxkbcommon libx11 libxcursor libxrandr libxi wayland mesa
+```
+
+### Linux (Fedora)
+
+```bash
+sudo dnf install cmake gcc-c++ pkgconf-pkg-config alsa-lib-devel jack-audio-connection-kit-devel
+```
+
+For the desktop build:
+
+```bash
+sudo dnf install libxkbcommon-devel libX11-devel libXcursor-devel libXrandr-devel libXi-devel wayland-devel mesa-libGL-devel
+```
+
+### Windows
+
+Install Visual Studio Build Tools (MSVC) and CMake. Everything else is provided by the Windows SDK.
+
+## Build
+
+Terminal (default):
+
+```bash
+cargo build --release
+```
+
+Desktop (egui window):
+
+```bash
+cargo build --release --features desktop --bin cagire-desktop
+```
+
+Plugins (CLAP/VST3):
+
+```bash
+cargo xtask bundle cagire-plugins --release
+```
+
+The xtask alias is defined in `.cargo/config.toml` (committed). Plugin bundles are output to `target/bundled/`.
+
+## Run
+
+Terminal (default):
+
+```bash
+cargo run --release -- [OPTIONS]
+```
+
+Desktop (egui window):
+
+```bash
+cargo run --release --features desktop --bin cagire-desktop
+```
+
+| Flag | Description |
+|------|-------------|
+| `-s, --samples <path>` | Sample directory (repeatable) |
+| `-o, --output <device>` | Output audio device |
+| `-i, --input <device>` | Input audio device |
+| `-c, --channels <n>` | Output channel count |
+| `-b, --buffer <size>` | Audio buffer size |
+
+## Cross-Compilation
+
+### Targets
+
+| Target | Method | Binaries |
+|--------|--------|----------|
+| aarch64-apple-darwin | Native (macOS ARM only) | `cagire`, `cagire-desktop` |
+| x86_64-apple-darwin | Native (macOS only) | `cagire`, `cagire-desktop` |
+| x86_64-unknown-linux-gnu | `cross build` (Docker) | `cagire`, `cagire-desktop` |
+| aarch64-unknown-linux-gnu (RPi 64-bit) | `cross build` (Docker) | `cagire`, `cagire-desktop` |
+| x86_64-pc-windows-msvc | `cargo xwin build` (native) | `cagire`, `cagire-desktop` |
+
+macOS targets can only be built on macOS. Linux targets are cross-compiled via Docker (`cross`). Windows targets are cross-compiled natively via `cargo-xwin` (downloads Windows SDK + MSVC CRT headers, no Docker needed).
+
+### Prerequisites
+
+1. **Docker** + **cross** (Linux targets only): `cargo install cross --git https://github.com/cross-rs/cross`
+2. **cargo-xwin** (Windows target): `cargo install cargo-xwin` and `rustup target add x86_64-pc-windows-msvc`
+3. On macOS, add the Intel target: `rustup target add x86_64-apple-darwin`
+
+### Building Individual Targets
+
+```bash
+# Linux x86_64 (Docker)
+cross build --release --target x86_64-unknown-linux-gnu
+cross build --release --features desktop --bin cagire-desktop --target x86_64-unknown-linux-gnu
+
+# Linux aarch64 (Docker)
+cross build --release --target aarch64-unknown-linux-gnu
+cross build --release --features desktop --bin cagire-desktop --target aarch64-unknown-linux-gnu
+
+# Windows x86_64 (native, no Docker)
+cargo xwin build --release --target x86_64-pc-windows-msvc
+cargo xwin build --release --features desktop --bin cagire-desktop --target x86_64-pc-windows-msvc
+```
+
+### Building All Targets
+
+```bash
+# Interactive (prompts for platform/target selection):
+uv run scripts/build.py
+
+# Non-interactive:
+uv run scripts/build.py --platforms macos-arm64,linux-x86_64 --targets cli,desktop
+uv run scripts/build.py --all
+```
+
+Builds selected targets, producing binaries in `releases/`.
+
+Platform aliases: `macos-arm64`, `macos-x86_64`, `linux-x86_64`, `linux-aarch64`, `windows-x86_64`.
+Target aliases: `cli`, `desktop`, `plugins`.
+
+### Linux AppImage Packaging
+
+Linux releases ship as AppImages — self-contained executables that bundle all shared library dependencies (ALSA, JACK, X11, OpenGL). No runtime dependencies required. `build.py` handles AppImage creation automatically for Linux targets.
+
+### Notes
+
+- Custom Dockerfiles in `scripts/cross/` install the native libraries for Linux cross-compilation (ALSA, JACK, X11, cmake, libclang, etc.). `Cross.toml` maps each Linux target to its Dockerfile.
+- The first Linux cross-build per target downloads Docker base images and installs packages. Subsequent builds use cached layers.
+- Cross-architecture Docker builds (e.g. aarch64 on x86_64) run under QEMU emulation and are significantly slower.
+- Windows cross-compilation via `cargo-xwin` runs natively on the host (no Docker) and uses real Windows SDK headers, ensuring correct ABI and struct layouts.

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [0.1.5]
+
+### Forth Language
+- **`at` reworked as a looping block**: `at` now captures all stack values as deltas, then re-executes its body once per delta. Closed by `.` (audio emit), `m.` (MIDI emit), or `done` (no emit). Each iteration gets independent nondeterministic rolls (e.g., `0 0.5 at kick snd 1 2 rand freq .` re-evaluates `kick snd 1 2 rand freq` at delta 0 and 0.5).
+- Removed `ArpList` type and `arp` word — arpeggio spreading is now handled by at-loops directly.
+
+### Added
+
+- Support i32/i16 sample formats at cpal boundary for ASIO compatibility
+
+### Fixed
+- Resolved value annotations deduplicated: nondeterministic ops inside at-loops now show only the last resolved value per span, instead of one annotation per iteration.
+- Audio input device name matching.
+
+## [0.1.4]
+
+### Breaking
+- **Doux v0.0.12**: removed Mutable Instruments Plaits modes (`modal`, `va`, `analog`, `waveshape`, `grain`, `chord`, `swarm`, `pnoise`, etc.). Native percussion models retained; new models added: `tom`, `cowbell`, `cymbal`.
+- Simplified effects/filter API: removed per-filter envelope parameters in favor of the universal `env` word.
+- Recording commands simplified: removed `/sound/` path segment from `rec`, `overdub`, `orec`, `odub`.
+
+### Forth Language
+- New modulation transition words: `islide` (swell), `oslide` (pluck), `pslide` (stair/stepped).
+- New `lpg` word (Low Pass Gate): pairs amplitude envelope with lowpass filter modulation.
+- New `inchan` word: select audio input channel by index.
+- New EQ frequency words: `eqlofreq`, `eqmidfreq`, `eqhifreq`.
+
+### UI / UX
+- Redesigned top bar: consolidated transport, tempo, bar:beat display with visual beat segments.
+- CPU meter with color-coded fill bar (green/yellow/red).
+
+### Engine
+- Audio input channel selection support.
+- Audio buffer sizing improved for multi-channel input.
+- MIDI output sends directly from dispatcher thread, bypassing UI-thread polling (~30x less jitter).
+
+### Packaging
+- CI migrated from GitHub Actions to Gitea Actions.
+- Removed WIX installer; Windows now distributed via zip and NSIS only.
+- Gitea Actions workflow for automatic website deployment.
+- Added LICENSE file.
+
+### Documentation
+- Extensive documentation updates reflecting doux v0.0.12 API changes across sources, filters, modulation, wavetable, and audio modulation docs.
+
+## [0.1.3]
+
+### Forth Language
+- New `stretch` word: pitch-independent time stretching via phase vocoder (e.g., `kick sound 2 stretch .` plays at half speed, same pitch).
+- Automatic default release time on sounds when none is explicitly set.
+
+### Engine
+- Sample-accurate timing: delta computation switched from float seconds to integer sample ticks, fixing precision issues.
+- Lock-free audio input buffer: replaced `Arc<Mutex<VecDeque>>` with `HeapRb` ring buffer.
+- Theme access optimized: `Rc<ThemeColors>` replaces deep cloning on every `get()`.
+- Dictionary keys cached in `App` to avoid repeated lock acquisitions during rendering.
+
+### Fixed
+- Realtime priority diagnostics: dedicated `warn_no_rt()` on Linux, lookahead widened from 20ms to 40ms when RT priority unavailable.
+- Float epsilon precision in delta/nudge zero-comparisons.
+- Windows build fixes for standalone and plugin targets.
+
+### Documentation
+- Time stretching usage guide added to `docs/engine/samples.md`.
+
+## [0.1.2]
+
+### Forth Language
+- Single-letter envelope aliases: `a` (attack), `d` (decay), `s` (sustain), `r` (release).
+- `sound` alias changed from `s` to `snd` (frees `s` for sustain).
+- New `partials` word: set number of active harmonics for additive oscillator.
+- Velocity parameter normalized to 0–1 float range (was 0–127 integer).
+
+### UI / UX
+- **Sample Explorer as dedicated page**: the side panel is now a full page (Tab key), with keyboard navigation (j/k, search with `/`, preview with Enter), replacing the old collapsible side panel.
+- **Pulsing armed-changes bar** on patterns page: staged play/stop/mute/solo changes shown in a launch bar with animated feedback ("c to launch").
+- Pulsing highlight on banks and patterns with staged changes.
+- Sample browser shows child count on collapsed folders and uses `+`/`-` tree icons.
+- File browser modal: shows audio file counts per directory, colored path segments, and hint bar.
+- Audio devices refreshed automatically when entering the Engine page.
+- Bank prelude field added to data model (foundation for bank-level Forth scripts).
+
+### Engine
+- Audio timing switched from float seconds to integer tick-based scheduling, improving timing precision.
+- Stream error handling refined: only `DeviceNotAvailable` and `StreamInvalidated` trigger device-lost recovery (non-fatal errors no longer restart the stream).
+- Step traces use `Arc` for cheaper cloning between threads.
+
+### Packaging
+- **Windows: NSIS installer** replaces cargo-wix MSI. Includes optional PATH registration, Start Menu shortcut, and proper Add/Remove Programs entry with uninstaller.
+- Improved Windows cross-compilation from Unix hosts (MinGW toolchain detection).
+- CI build timeouts increased to 60 minutes across all platforms.
+- Website download matrix updated.
+
+## [0.1.1]
+
+### Forth Language
+- `map` word: apply a quotation to each stack element (`1 2 3 ( 10 * ) map => 10 20 30`).
+- `loop` fix: now operates in steps instead of beats, uses `step_duration()` for correct timing.
+
+### Fixed
+- Crash on missing sample directories: sample path scanning now validates directories exist before scanning.
+- Audio channel minimum enforced to 2, preventing crash on devices reporting fewer channels.
+- Audio device disconnect: automatic stream restart when device is lost (terminal and desktop).
+- Live keys (e.g. `f` for fill) no longer trigger while searching in dictionary or help views.
+- Side panel always uses horizontal layout (removed broken vertical fallback for narrow terminals).
+
+### Changed
+- Runtime highlight enabled by default.
+
+### Packaging
+- Modular CI: split monolithic release workflow into per-platform builds (Linux, macOS, Windows, cross-compilation).
+- Separate CI workflows for CLAP/VST plugin builds (Linux, macOS, Windows, Raspberry Pi).
+- Windows MSI installer workflow fixes.
+- Website download matrix updated.
+
+## [0.1.0]
+
+### Breaking
+- **Quotation syntax changed from `{ }` to `( )`** — all deferred code blocks now use parentheses.
+
+### Forth Language
+
+**Syntax:**
+- `[ v1 v2 v3 ]` bracket lists with implicit count.
+- `( ... )` quotation syntax (replaces `{ }`).
+- `,varname` assignment syntax (SetKeep): assign without consuming.
+- `case/of/endof/endcase` control flow.
+- `print` — debug word, outputs top-of-stack as text.
+- Arithmetic and unary ops now lift over ArpList and CycleList element-wise.
+
+**New words:**
+- `index` — select item at explicit index (wraps with modulo).
+- `slice` / `pick` — sample slicing: divide a sample into N equal parts and select which slice to play.
+- `wave` / `waveform` — set drum synthesis waveform (0=sine, 0.5=triangle, 1=saw).
+- `pbounce` — ping-pong cycle keyed by pattern iteration.
+- `except` — inverse of `every`.
+- `every+` / `except+` — phase-offset variants.
+- `bjork` / `pbjork` — euclidean rhythm gates using quotations.
+- `arp` — arpeggio list type (spreads notes across time).
+- `all` / `noall` — apply params globally to all emitted sounds.
+- `linmap` / `expmap` — linear and exponential range mapping.
+- `rec` / `overdub` (`dub`) — record/overdub master audio to a named sample.
+- `orec` / `odub` — record/overdub a single orbit.
+
+**Harmony and voicing:**
+- `key!` — set tonal center.
+- `triad` / `seventh` — diatonic chord from scale degree.
+- `inv` / `dinv` — chord inversion / down inversion.
+- `drop2` / `drop3` — drop voicings.
+- `tp` — transpose all ints on stack by N semitones.
+
+**New chord types:**
+- `pwr`, `augmaj7`, `7sus4`, `9sus4`, `maj69`, `min69`, `maj11`, `maj13`, `min13`, `dom7s11`.
+
+**Effect parameters:**
+- Ducking compressor: `comp`, `compattack`/`cattack`, `comprelease`/`crelease`, `comporbit`/`corbit`.
+- Smear effect: `smear`, `smearfreq`, `smearfb`.
+- Reverb: `verbtype`, `verbchorus`, `verbchorusfreq`, `verbprelow`, `verbprehigh`, `verblowcut`, `verbhighcut`, `verblowgain`.
+
+**Behavior changes:**
+- All parameter words now accept varargs (100+ words updated to consume the full stack).
+- `every` reworked to accept quotations.
+- Removed `chain` word (replaced by pattern-level Follow Up setting).
+
+### Engine
+- SF2 soundfont support: auto-scans sample directories for `.sf2` files.
+- Follow-up actions: patterns have configurable follow-up (Loop, Stop, Chain). Replaces the `chain` word with a declarative UI setting (`e` key).
+- Delta-time MIDI scheduling for tighter timing.
+- Audio stream errors surfaced as flash messages.
+- Prelude script evaluated on application startup (not only on play).
+- Global periodic script: a hidden script page runs alongside all patterns at its own speed/length.
+- RestartAll command: reset all active patterns to step 0 and clear state.
+- Tempo and current beat exposed in sequencer snapshot.
+- Spectrum analyzer rescaling.
+
+### UI / UX
+- **Engine page redesign**: responsive narrow/wide layout, Link/MIDI/device settings moved here from Options.
+- **Patterns view redesign**: banks column with pattern counts, expandable detail rows, bottom preview strip with mini step grid.
+- **Mouse support**: click navigation on header/grid/panels/modals, text selection in code editor (click+drag), double-click on scope/spectrum/lissajous to cycle display modes.
+- Smooth playback progress bar interpolated between steps.
+- Dynamic step grid sizing adapts to terminal height.
+- Lissajous XY scope with Braille rendering and thermal trail mode.
+- Gain boost (1x–16x) and normalize toggle for scope/lissajous/spectrum.
+- Pattern description field: editable via `d`, shown in pattern list and properties.
+- Bank/pattern import and export via clipboard (base64 serialization for sharing).
+- Mute/solo on main page now apply immediately (no staging).
+- Step name automatically cleared when deleting a step.
+- F1–F6 page navigation across the 3×2 page grid.
+- Collapsible help sections with code block copy.
+- Onboarding system for first-time users.
+- Show/hide preview pane toggle and zoom factor setting.
+- Reduced UI lag: sequencer snapshot moved after render call.
+- 10 bundled demo projects loaded on fresh startup (togglable in Options).
+- Options page: each option shows a description line below when focused.
+- Dictionary page: word list uses full page height (removed description box).
+
+### Themes
+- 5 new themes: Iceberg, Everforest, Fauve, Tropicalia, Jaipur.
+- Palette-based generation: all 18 themes derived from a 14-field Palette via Oklab color space (definitions reduced from ~300 to ~20 lines each).
+
+### Desktop (egui)
+- Fixed Alt/Option key on macOS (dead-key composition now works).
+- Fixed multi-character text paste.
+- Extended function key support (F13–F20).
+- No console window on Windows desktop build.
+
+### Packaging
+- macOS: `.dmg` disk image with `.app` bundle (Intel + Apple Silicon fat binaries via `lipo`).
+- Windows: `.msi` installer via WiX.
+- Linux: improved AppImage build scripts and Docker cross-compilation.
+
+### CLAP Plugin (experimental)
+- Early CLAP plugin support via nih-plug, baseview, and egui. Feature-gated builds separate CLI from plugin targets.
+
+### Documentation
+- Complete reorganization into `docs/` subdirectories.
+- 10 getting-started guides, 5 interactive tutorials.
+- New tutorials: Recording, Soundfonts, Sharing (import/export).
+- New topics: control flow, generators, harmony, randomness, variables, timing, bracket syntax.
+- Crate-level READMEs for forth, markdown, project, ratatui.
+
+### Fixed
+- CycleList + ArpList index collision: arp uses timing index, cycle uses polyphony slot.
+- Scope widget not drawing completely in some terminal sizes.
+
+### Codebase
+- `src/app.rs` split into 10 focused modules.
+- `src/input.rs` split into 8 page-specific handlers.
+- Undo/redo system with scope-based tracking.
+- Feature-gated CLI vs plugin builds.
+- New reusable widgets: CategoryList, HintBar, PropsForm, ScrollIndicators, SearchBar, SectionHeader.
+
+## [0.0.9]
+
+### Website
+- Compressed screenshot images: resized to 1600px and converted PNG to WebP (8MB → 538KB).
+- Version number displayed in subtitle, read automatically from `Cargo.toml` at build time.
+
+### Added
+- `arp` word for arpeggios: wraps stack values into an arpeggio list that spreads notes across time positions instead of playing them all simultaneously. With explicit `at` deltas, arp items zip with deltas (cycling the shorter list); without `at`, the step is auto-subdivided evenly. Example: `sine s c4 e4 g4 b4 arp note .` plays a 4-note arpeggio across the step.
+- Resolved value annotations: nondeterministic words (`rand`, `choose`, `cycle`, `bounce`, `wchoose`, `coin`, `chance`, `prob`, `exprand`, `logrand`) now display their resolved value inline (e.g., `choose [sine]`, `rand [7]`, `chance [yes]`) during playback in both Preview and Editor modals.
+- Inline sample finder in the editor: press `Ctrl+B` to open a fuzzy-search popup of all sample folder names. Type to filter, `Ctrl+N`/`Ctrl+P` to navigate, `Tab`/`Enter` to insert the folder name at cursor, `Esc` to dismiss. Mutually exclusive with word completion.
+- Sample browser now displays the 0-based file index next to each sample name, making it easy to reference samples by index in Forth scripts (e.g., `"drums" bank 0 n`).
+
+### Improved
+- Header bar stats block (CPU/voices/Link peers) is now centered like all other header sections.
+- CPU percentage changes color when load is high: accent color at 50%+, error color at 80%+.
+- Extracted 6 reusable TUI components into `cagire-ratatui`: `CategoryList`, `render_scroll_indicators`, `render_search_bar`, `render_section_header`, `render_props_form`, `hint_line`. Reduces duplication across views.
+
+### Fixed
+- Soundless emits (e.g., `1 gain .`) no longer stack infinite voices. All emitted commands now receive a default duration of one beat unless the user explicitly sets `dur`. Use `0 dur` for intentionally infinite voices.
+
+## [0.0.8] - 2026-02-07
+
+### Fixed
+- macOS `.pkg` installer bundle relocation: disabled `BundleIsRelocatable` so `Cagire.app` always installs to `/Applications/` instead of being redirected to an existing bundle location.
+
+### Added
+- Syntax highlighting for user-defined Forth words: words created with `: name ... ;` now render with a distinct color in both the editor and step preview, instead of dimmed gray.
+- Multi-selection in Patterns view: Shift+Up/Down selects adjacent ranges of banks or patterns using anchor-based selection. Works with copy/paste (Ctrl+C/V), reset (Delete), toggle play (`p`), mute (`m`), and solo (`x`). Selection is column-scoped and clears on plain arrows, column switch, or Esc. Single-only actions (rename, pattern props, enter) are disabled during multi-selection.
+- Audio-rate modulation DSL: LFO words (`lfo`, `tlfo`, `wlfo`, `qlfo` for sine/triangle/sawtooth/square), transition envelopes (`slide`, `expslide`, `sslide` for linear/exponential/smooth), random modulation (`jit`, `sjit`, `drunk` for random hold/smooth random/drunk walk), and multi-segment envelope (`env`). These produce modulation strings consumed by parameter words for continuous audio-rate control.
+- Feedback delay FX words: `feedback`/`fb` (level), `fbtime`/`fbt` (delay time), `fbdamp`/`fbd` (damping), `fblfo` (LFO rate), `fblfodepth` (LFO depth), `fblfoshape` (LFO shape).
+- `bounce` word: ping-pong cycle through n items by step runs (e.g., `60 64 67 72 4 bounce` → 60 64 67 72 67 64 60 64...).
+- `wchoose` word: weighted random selection from n value/weight pairs (e.g., `60 0.6  64 0.3  67 0.1  3 wchoose`). Supports quotations.
+- New themes: **Eden** (dark forest — green-only palette on black), **Georges** (Commodore 64 palette on black), **Ember** (warm dark tones), **Letz Light** (light theme).
+- Proper desktop app icon and metadata across all platforms: moved icon to `assets/Cagire.png`, added Windows `.exe` icon and file properties embedding via `winres` build script, added PNG to cargo-bundle icon list for Linux `.deb` packaging.
+- Universal macOS `.pkg` installer in CI: combines Intel and Apple Silicon builds into fat binaries via `lipo`, then packages `Cagire.app` and CLI into a single `.pkg` installer.
+- Waveform rendering widget in the TUI.
+
+### Improved
+- Sample library browser: search now shows folder names only (no files) while typing, sorted by fuzzy match score. After confirming search with Enter, folders can be expanded and collapsed normally. Esc clears the search filter before closing the panel. Left arrow on a file collapses the parent folder. Cursor and scroll position stay valid after expand/collapse operations.
+- RAM optimizations saving ~5 MB at startup plus smaller enums and fewer hot-path allocations:
+  - Removed dead `Step::command` field (~3.1 MB)
+  - Narrowed `Step::source` from `Option<usize>` to `Option<u8>` (~1.8 MB)
+  - `Op::SetParam` and `Op::GetContext` now use `&'static str` instead of `String`
+  - `SourceSpan` fields narrowed from `usize` to `u32`
+  - Dirty pattern tracking uses fixed `[[bool; 32]; 32]` array instead of `HashSet`
+  - Boxed `FileBrowserState` in `Modal` enum to shrink all variants
+  - `StepContext::cc_access` borrows instead of cloning `Arc<dyn CcAccess>`
+  - Removed unnecessary `Arc` wrapper from `Stack` type
+  - Variable key cache computes on-demand with reusable buffers instead of pre-allocating 2048 Strings
+- Render pipeline: background fill uses `Clear` widget instead of generating blank paragraph lines.
+
+### Fixed
+- Sequencer sync: auto-loaded patterns now use PhaseLock instead of Reset, so they align to the global beat grid and stay in sync with manually-started patterns.
+- PhaseLock off-by-one: start step calculation now uses the frontier beat instead of the lookahead end, eliminating a systematic 1-step offset.
+- Stale pattern cache on load: dirty patterns are now flushed before queued start/stop changes, ensuring pattern data arrives before activation.
+- Loading while paused no longer drops auto-started patterns; pending starts are preserved and activate on resume.
+
+### Changed
+- Header bar is now always 3 lines tall with vertically centered content and full-height background colors, replacing the previous 1-or-2-line width-dependent layout.
+- Help view Welcome page: BigText title is now gated behind `cfg(not(feature = "desktop"))`, falling back to a plain text title in the desktop build (same strategy as the splash screen).
+- Space now toggles play/pause on all views, including the Patterns page where it previously toggled pattern play. Pattern play on the Patterns page is now bound to `p`.
+
+## [0.0.7] - 2026-05-02
+
+### Added
+- 3-operator FM synthesis words: `fm2` (operator 2 depth), `fm2h` (operator 2 harmonic ratio), `fmalgo` (algorithm: 0=cascade, 1=parallel, 2=branch), `fmfb` (feedback amount). Extends the existing 2-OP FM engine to a full 3-OP architecture with configurable routing and operator feedback.
+- Background head-preload for sample libraries. At startup, a background thread decodes the first 4096 frames (~93ms) of every sample into RAM. Short samples (most percussion/drums) are fully captured and play instantly on first trigger. Eliminates first-hit misses for live performance.
+- Most changes are on doux side. It makes sense to recompile and release now to ship a version that comes with these improvements.
+
+### Fixed
+- Code editor now scrolls vertically to keep the cursor visible. Previously, lines beyond the visible area were clipped and the cursor could move off-screen.
+
+## [0.0.6] - 2026-05-02
+
+### Added
+- TachyonFX based animations
+- Prelude: project-level Forth script for persistent word definitions. Press `d` to edit, `D` to re-evaluate. Runs automatically on playback start and project load.
+- Varargs stack words: `rev`, `shuffle`, `sort` (ascending), `rsort` (descending), `sum`, `prod`. All take a count and operate on the top n items.
+- Euclidean rhythm words: `euclid` (k n -- hits) distributes k hits across n steps, `euclidrot` (k n r -- hits) adds rotation offset.
+- Shorthand float syntax: `.25` parses as `0.25`, `-.5` parses as `-0.5`.
+
+### Changed
+- Split `words.rs` (3,078 lines) into a `words/` directory module with category-based files: `core.rs`, `sound.rs`, `effects.rs`, `sequencing.rs`, `music.rs`, `midi.rs`, plus `compile.rs` and `mod.rs`.
+- Renamed `tri` Forth word to `triangle`.
+- Sequencer rewritten with prospective lookahead scheduling. Instead of sleeping until a substep, waking late, and detecting past events, the sequencer now pre-computes all events within a ~20ms forward window. Events arrive at doux with positive time deltas, scheduled before they need to fire. Sleep+spin-wait replaced by `recv_timeout(3ms)` on the command channel. Timing no longer depends on OS sleep precision.
+- `audio_sample_pos` updated at buffer start instead of end, so `engine_time` reflects current playback position.
+- Doux grace period increased from 1ms to 50ms as a safety net (events should never be late with lookahead).
+- Flattened model re-export indirection; `script.rs` now exports only `ScriptEngine`.
+- Hue rotation step size increased from 1° to 5° for faster adjustment.
+- Moved catalog data (DOCS, CATEGORIES) from views to `src/model/`, eliminating state-to-view layer inversion.
+- Extracted shared initialization into `src/init.rs`, deduplicating ~140 lines between terminal and desktop binaries.
+- Split App dispatch into focused service modules (`help_nav`, `dict_nav`, `euclidean`, `clipboard`, extended `pattern_editor`), reducing `app.rs` by ~310 lines.
+- Moved stack preview computation from render path to input time, making editor rendering pure.
+- Decoupled script runtime state between UI and sequencer threads, eliminating shared mutexes on the RT path.
+
+### Fixed
+- Prelude content no longer leaks into step editor. Closing the prelude editor now restores the current step's content to the buffer.
+- Desktop binary now loads color theme and connects MIDI devices on startup (was missing).
+- Audio commands no longer silently dropped when channel is full; switched to unbounded channel matching MIDI dispatch pattern.
+- PatternProps and EuclideanDistribution modals now use the global theme background instead of the terminal default.
+- Changing pattern properties is now a stage/commit operation.
+- Changing pattern speed only happens at pattern boundaries.
+- `mlockall` warning no longer appears on macOS; memory locking is now Linux-only.
+- `clear` now resets `at` deltas, so subsequent emits default to a single emit at position 0.
+
+## [0.0.5] - 2026-04-02
+
+### Added
+- Mute/solo for patterns: stage with `m`/`x`, commit with `c`. Solo mutes all other patterns. Clear with `M`/`X`.
+- Lookahead scheduling: scripts are pre-evaluated ahead of time and audio commands are scheduled at precise beat positions, improving timing accuracy under CPU load.
+- Realtime thread scheduling (`SCHED_FIFO`) for sequencer thread on Unix systems, improving timing reliability.
+- Deep into the Linux hellscape: trying to get reliable performance, better stability, etc.
+
+### Fixed
+- Editor completion popup no longer steals arrow keys. Arrow keys always move the cursor; use Ctrl+N/Ctrl+P to navigate the completion list.
+
+## [0.0.4] - 2026-02-02
+
+### Added
+- Double-stack words: `2dup`, `2drop`, `2swap`, `2over`.
+- `forget` word to remove user-defined words from the dictionary.
+- Active patterns panel showing playing patterns with bank, pattern, iteration count, and step position.
+- Configurable visualization layout (Top/Bottom/Left/Right) for scope and spectrum placement.
+- Euclidean distribution modal to spread a step's script across the pattern using Euclidean rhythms.
+- Fairyfloss theme (pastel candy colors by sailorhg).
+- Hot Dog Stand theme (classic Windows 3.1 red/yellow).
+- Hue rotation option in Options menu to shift all theme colors (0-360°).
+
+### Changed
+- Title view now adapts to smaller terminal sizes gracefully.
+
+### Fixed
+- Scope/spectrum ratio asymmetry in Left/Right layout modes.
+- Updated `cpal` dependency from 0.15 to 0.17 to fix type mismatch with `doux` audio backend.
+- Copy/paste (Ctrl+C/V/X) not working in desktop version due to egui intercepting clipboard shortcuts.
+
+## [0.0.3] - 2026-02-02
+
+### Added
+- Polyphonic parameters: param words (`note`, `freq`, `gain`, etc.) and sound words now consume the entire stack, enabling polyphony (e.g., `60 64 67 note sine s .` emits 3 voices).
+- New random distribution words: `exprand` (exponential) and `logrand` (logarithmic).
+- Music theory chord words: `maj`, `m`, `dim`, `aug`, `sus2`, `sus4`, `maj7`, `min7`, `dom7`, `dim7`, `m7b5`, `minmaj7`, `aug7`, `maj6`, `min6`, `dom9`, `maj9`, `min9`, `dom11`, `min11`, `dom13`, `add9`, `add11`, `madd9`, `dom7b9`, `dom7s9`, `dom7b5`, `dom7s5`.
+- Playing patterns are now saved with the project and restored on load.
+
+### Changed
+- `at` now consumes the entire stack for time offsets; polyphony multiplies with deltas (2 notes × 2 times = 4 voices).
+- Iterator (`iter`) now resets when a pattern restarts.
+- Project loading now properly resets state: stops all patterns, clears user variables/dictionary, and clears queued changes.
+
+### Removed
+- `tcycle` word (replaced by polyphonic parameter behavior).
+
+## [0.0.2] - 2026-02-01
+- CI testing and codebase cleanup
+
+## [0.0.1] - Initial Release
+- CI testing

CONTRIBUTING.md

@@ -10,6 +10,7 @@ Contributions are welcome. There are many ways to contribute beyond code:
 ## Prerequisites
 
 - **Rust** (stable toolchain) - [rustup.rs](https://rustup.rs/)
+- **System libraries** - See [BUILDING.md](BUILDING.md) for platform-specific packages (cmake, ALSA, etc.)
 
 ## Quick start
 

Cargo.toml

@@ -1,7 +1,24 @@
+[workspace]
+members = ["crates/forth", "crates/markdown", "crates/project", "crates/ratatui", "plugins/cagire-plugins", "plugins/baseview", "plugins/egui-baseview", "plugins/nih-plug-egui", "xtask"]
+
+[workspace.package]
+version = "0.1.4"
+edition = "2021"
+authors = ["Raphaël Forment <raphael.forment@gmail.com>"]
+license = "AGPL-3.0"
+repository = "https://git.raphaelforment.fr/BuboBubo/cagire"
+homepage = "https://cagire.raphaelforment.fr"
+description = "Forth-based live coding music sequencer"
+
 [package]
 name = "cagire"
-version = "0.1.0"
-edition = "2021"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+license.workspace = true
+repository.workspace = true
+homepage.workspace = true
+description.workspace = true
 
 [lib]
 name = "cagire"
@@ -11,20 +28,88 @@ path = "src/lib.rs"
 name = "cagire"
 path = "src/main.rs"
 
-[dependencies]
-doux = { git = "https://github.com/Bubobubobubobubo/doux", features = ["native"] }
-rusty_link = "0.4"
-ratatui = "0.29"
-crossterm = "0.28"
-cpal = "0.15"
-clap = { version = "4", features = ["derive"] }
+[[bin]]
+name = "cagire-desktop"
+path = "src/bin/desktop/main.rs"
+required-features = ["desktop"]
 
+[features]
+default = ["cli"]
+cli = ["dep:cpal", "dep:midir", "dep:confy", "dep:clap", "dep:thread-priority"]
+block-renderer = ["dep:soft_ratatui", "dep:rustc-hash", "dep:egui", "dep:egui_ratatui"]
+desktop = [
+    "cli",
+    "block-renderer",
+    "cagire-forth/desktop",
+    "dep:eframe",
+    "dep:image",
+]
+asio = ["doux/asio", "cpal/asio"]
+
+[dependencies]
+cagire-forth = { path = "crates/forth" }
+cagire-markdown = { path = "crates/markdown" }
+cagire-project = { path = "crates/project" }
+cagire-ratatui = { path = "crates/ratatui" }
+doux = { git = "https://github.com/sova-org/doux", tag = "v0.0.19", features = ["native", "soundfont"] }
+rusty_link = "0.4"
+ratatui = "0.30"
+crossterm = "0.29"
+cpal = { version = "0.17", optional = true }
+clap = { version = "4", features = ["derive"], optional = true }
 rand = "0.8"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
-tui-textarea = "0.7"
-tui-big-text = "0.7"
+tachyonfx = { version = "0.22", features = ["std-duration"] }
+tui-big-text = "0.8"
 arboard = "3"
 minimad = "0.13"
 crossbeam-channel = "0.5"
-confy = "2"
+confy = { version = "2", optional = true }
+rustfft = "6"
+thread-priority = { version = "1", optional = true }
+ringbuf = "0.4"
+arc-swap = "1"
+midir = { version = "0.10", optional = true }
+parking_lot = "0.12"
+libc = "0.2"
+
+# Desktop-only dependencies (behind feature flag)
+egui = { version = "0.33", optional = true }
+eframe = { version = "0.33", optional = true }
+egui_ratatui = { version = "2.1", optional = true }
+soft_ratatui = { version = "0.1.3", features = ["unicodefonts"], optional = true }
+rustc-hash = { version = "2", optional = true }
+image = { version = "0.25", default-features = false, features = ["png"], optional = true }
+
+
+[target.'cfg(target_os = "linux")'.dependencies]
+cpal = { version = "0.17", optional = true, features = ["jack"] }
+
+[build-dependencies]
+winresource = "0.1"
+
+[profile.release]
+opt-level = 3
+lto = "thin"
+codegen-units = 1
+panic = "abort"
+strip = true
+
+[patch."https://github.com/robbert-vdh/nih-plug"]
+nih_plug_egui = { path = "plugins/nih-plug-egui" }
+
+[patch."https://github.com/BillyDM/egui-baseview.git"]
+egui-baseview = { path = "plugins/egui-baseview" }
+
+[patch."https://github.com/RustAudio/baseview.git"]
+baseview = { path = "plugins/baseview" }
+
+[package.metadata.bundle.bin.cagire-desktop]
+name = "Cagire"
+identifier = "com.sova.cagire"
+icon = ["assets/Cagire.icns", "assets/Cagire.ico", "assets/Cagire.png"]
+copyright = "Copyright (c) 2025 Raphaël Forment"
+category = "Music"
+short_description = "Forth-based music sequencer"
+minimum_system_version = "12.0"

Cross.toml

@@ -0,0 +1,5 @@
+[target.aarch64-unknown-linux-gnu]
+dockerfile = "./scripts/cross/aarch64-linux.Dockerfile"
+
+[target.x86_64-unknown-linux-gnu]
+dockerfile = "./scripts/cross/x86_64-linux.Dockerfile"

README.md

@@ -1,19 +1,83 @@
-# Cagire
+<h1 align="center">Cagire</h1>
 
-A Forth Music Sequencer.
+<p align="center"><em>A Forth-based live coding sequencer</em></p>
 
-## Build
+<p align="center">
+  <img src="assets/Cagire.png" alt="Cagire" width="256">
+</p>
 
-```
-cargo build --release
+<p align="center">
+  <a href="https://cagire.raphaelforment.fr">Website</a> &middot;
+  <a href="https://git.raphaelforment.fr/BuboBubo/cagire">Gitea</a> &middot;
+  AGPL-3.0
+</p>
+
+Cagire is a terminal based step sequencer and live coding platform. Each step in a sequence is represented by a **Forth** script. It ships with a self-contained audio engine. No external software is needed, Cagire is a fully autonomous musical instrument that provides everything you need to perform.
+
+### Examples
+
+A filtered sawtooth with reverb:
+
+```forth
+saw sound
+200 199 freq
+400 lpf
+.8 lpq .3 verb
+.
 ```
 
-## Run
+A generative pattern using randomness, scales, and effects:
 
-```
-cargo run --release
+```forth
+sine sound 2 fm 0.5 fmh
+0 7 rand minor 50 + note
+.1 .8 rand lpf
+1 4 rand 10 * delay .5 delayfeedback
+.
 ```
 
-## License
+### Features
 
-AGPL-3.0
+- **Cagire's Forth**: a stack-based language made for live coding
+  - Forth has almost no syntax, only words, numbers and spaces. Very easy to learn for beginners, quite deep for experienced programmers.
+  - Nondeterminism and generative: randomness, probabilities, patterns thought as first-class features.
+  - Quotations: code blocks `( ... )` that compose with probability, cycling, euclidean, and conditional words.
+  - User-defined words: extend (or redefine) the language on the fly with `:name ... ;` definitions.
+  - Interactive documentation: built-in tutorials with runnable examples.
+- **Audio engine** (powered by [Doux](https://doux.livecoding.fr)):
+  - Synthesis: classic waveforms (saw, pulse, tri, sine), additive (up to 32 partials), FM (2-op, 3 algorithms), wavetables, 7-voice spread.
+  - Drum models: seven drum models with timbral morphing.
+  - Sampling: disk-loaded samples with slicing, looping, pitch tracking, wavetable mode, and live recording from engine output or line input.
+  - Filters: biquad LP/HP/BP and ladder filters. Filters can be modulated, stacked, etc.
+  - Effects: phaser, flanger, chorus, smear, distortion, wavefolder, wavewrapper, bitcrusher, sample-rate reduction, 3-band EQ, tilt EQ, Haas stereo.
+  - Bus effects: delay (standard, ping-pong, tape, multitap), two reverb engines (Dattorro plate, Vital Space), comb filter, feedback delay with LFO, sidechain compressor.
+  - Modulation: vibrato, AM, ring mod, audio-rate LFO, transitions, DAHDSR envelope modulation — all applicable to any parameter.
+- **Sequencing**: probabilities, patterns, euclidean structures, sub-step timing, pattern chaining and a lot more.
+- **MIDI**: receive or send MIDI messages across up to 4 inputs and 4 outputs.
+- **Ableton Link**: tempo and phase sync with any Link-enabled software or hardware.
+- **Cross-platform**: terminal and desktop interfaces on macOS, Linux, and Windows.
+- **Plugins**: run Cagire as a CLAP or VST3 plugin inside your DAW (separate version).
+
+### Getting started
+
+Download the latest release for your platform from the [website](https://cagire.raphaelforment.fr).
+
+To build from source instead, see [BUILDING.md](BUILDING.md).
+
+### Documentation
+
+Cagire includes interactive documentation with runnable code examples. Press **F4** in the application to open it.
+
+- [Website](https://cagire.raphaelforment.fr)
+- [BUILDING.md](BUILDING.md) — build instructions and CLI flags
+- [CHANGELOG.md](CHANGELOG.md)
+
+### Credits
+
+Cagire is developed by [BuboBubo](https://raphaelforment.fr) (Raphael Forment).
+
+- **[Doux](https://doux.livecoding.fr)** (audio engine) — Rust port of Dough, originally written in C by Felix Roos
+
+### License
+
+[AGPL-3.0](LICENSE)

assets/DMG-README.txt

@@ -0,0 +1,18 @@
+# Cagire - A Forth-based music sequencer
+
+## Installation
+
+Drag Cagire.app into the Applications folder.
+
+## Unquarantine
+
+Since this app is not signed with an Apple Developer certificate,
+macOS will block it from running. Thanks Apple! To fix this, open
+Terminal and run:
+
+    xattr -cr /Applications/Cagire.app
+
+## Support
+
+If you enjoy this software, consider supporting development:
+https://ko-fi.com/raphaelbubo

assets/cagire.desktop

@@ -0,0 +1,7 @@
+[Desktop Entry]
+Type=Application
+Name=Cagire
+Comment=Forth-based music sequencer
+Exec=cagire
+Icon=cagire
+Categories=Audio;Music;AudioVideo;

build.rs

@@ -0,0 +1,25 @@
+//! Build script — embeds Windows application resources (icon, metadata).
+
+fn main() {
+    let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap_or_default();
+
+    if target_os == "windows" {
+        println!("cargo:rustc-link-lib=ws2_32");
+        println!("cargo:rustc-link-lib=iphlpapi");
+        println!("cargo:rustc-link-lib=winmm");
+        println!("cargo:rustc-link-lib=ole32");
+        println!("cargo:rustc-link-lib=oleaut32");
+    }
+
+    if target_os == "windows" {
+        let manifest_dir = std::env::var("CARGO_MANIFEST_DIR").unwrap();
+        let icon = format!("{manifest_dir}/assets/Cagire.ico");
+        winresource::WindowsResource::new()
+            .set_icon(&icon)
+            .set("ProductName", "Cagire")
+            .set("FileDescription", "Forth-based music sequencer")
+            .set("LegalCopyright", "Copyright (c) 2025 Raphaël Forment")
+            .compile()
+            .expect("Failed to compile Windows resources");
+    }
+}

crates/forth/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "cagire-forth"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+license.workspace = true
+repository.workspace = true
+description = "Forth virtual machine for cagire sequencer"
+
+[features]
+default = []
+desktop = []
+
+[dependencies]
+rand = "0.8"
+parking_lot = "0.12"
+arc-swap = "1"

crates/forth/README.md

@@ -0,0 +1,22 @@
+# cagire-forth
+
+Stack-based Forth VM for the Cagire sequencer. Tokenizes, compiles, and executes step scripts to produce audio and MIDI commands.
+
+## Modules
+
+| Module | Description |
+|--------|-------------|
+| `vm` | Interpreter loop, `Forth::evaluate()` entry point |
+| `compiler` | Tokenization (with source spans) and single-pass compilation to ops |
+| `ops` | `Op` enum (~90 variants) |
+| `types` | `Value`, `StepContext`, shared state types |
+| `words/` | Built-in word definitions: `core`, `sound`, `music`, `midi`, `effects`, `sequencing`, `compile` |
+| `theory/` | Music theory lookups: `scales` (~200 patterns), `chords` (interval arrays) |
+
+## Key Types
+
+- **`Forth`** — VM instance, holds stacks and compilation state
+- **`Value`** — Stack value (int, float, string, list, quotation, ...)
+- **`StepContext`** — Per-step evaluation context (step index, tempo, variables, ...)
+- **`Op`** — Compiled operation; nondeterministic variants carry `Option<SourceSpan>` for tracing
+- **`ExecutionTrace`** — Records executed/selected spans and resolved values during evaluation

crates/forth/src/compiler.rs

@@ -0,0 +1,460 @@
+//! Single-pass compiler from Forth source text to Op sequences.
+
+use std::borrow::Cow;
+use std::sync::Arc;
+
+use super::ops::Op;
+use super::types::{Dictionary, SourceSpan};
+use super::words::compile_word;
+
+#[derive(Clone, Debug)]
+enum Token {
+    Int(i64, SourceSpan),
+    Float(f64, SourceSpan),
+    Str(String, SourceSpan),
+    Word(String, SourceSpan),
+}
+
+/// Compile Forth source text into an executable Op sequence.
+pub(super) fn compile_script(input: &str, dict: &Dictionary) -> Result<Vec<Op>, String> {
+    let tokens = tokenize(input);
+    compile(&tokens, dict)
+}
+
+fn tokenize(input: &str) -> Vec<Token> {
+    let mut tokens = Vec::new();
+    let mut chars = input.char_indices().peekable();
+
+    while let Some(&(pos, c)) = chars.peek() {
+        if c.is_whitespace() {
+            chars.next();
+            continue;
+        }
+
+        if c == '{' || c == '}' {
+            chars.next();
+            continue;
+        }
+
+        if c == '"' {
+            let start = pos;
+            chars.next();
+            let mut s = String::new();
+            let mut end = start + 1;
+            while let Some(&(i, ch)) = chars.peek() {
+                end = i + ch.len_utf8();
+                chars.next();
+                if ch == '"' {
+                    break;
+                }
+                s.push(ch);
+            }
+            tokens.push(Token::Str(s, SourceSpan { start: start as u32, end: end as u32 }));
+            continue;
+        }
+
+        if c == ';' {
+            chars.next(); // consume first ;
+            if let Some(&(_, ';')) = chars.peek() {
+                // ;; starts a comment to end of line
+                chars.next(); // consume second ;
+                while let Some(&(_, ch)) = chars.peek() {
+                    if ch == '\n' {
+                        break;
+                    }
+                    chars.next();
+                }
+                continue;
+            }
+            // single ; is a word, create token
+            tokens.push(Token::Word(
+                ";".to_string(),
+                SourceSpan {
+                    start: pos as u32,
+                    end: (pos + 1) as u32,
+                },
+            ));
+            continue;
+        }
+
+        let start = pos;
+        let mut word = String::new();
+        let mut end = start;
+        while let Some(&(i, ch)) = chars.peek() {
+            if ch.is_whitespace() {
+                break;
+            }
+            end = i + ch.len_utf8();
+            word.push(ch);
+            chars.next();
+        }
+
+        let span = SourceSpan { start: start as u32, end: end as u32 };
+
+        // Normalize shorthand float syntax: .25 -> 0.25, -.5 -> -0.5
+        let word_to_parse: Cow<str> = if word.starts_with('.')
+            && word.len() > 1
+            && word.as_bytes()[1].is_ascii_digit()
+        {
+            Cow::Owned(format!("0{word}"))
+        } else if word.starts_with("-.")
+            && word.len() > 2
+            && word.as_bytes()[2].is_ascii_digit()
+        {
+            Cow::Owned(format!("-0{}", &word[1..]))
+        } else {
+            Cow::Borrowed(&word)
+        };
+
+        if let Ok(i) = word_to_parse.parse::<i64>() {
+            tokens.push(Token::Int(i, span));
+        } else if let Ok(f) = word_to_parse.parse::<f64>() {
+            tokens.push(Token::Float(f, span));
+        } else {
+            tokens.push(Token::Word(word, span));
+        }
+    }
+
+    tokens
+}
+
+fn compile(tokens: &[Token], dict: &Dictionary) -> Result<Vec<Op>, String> {
+    let mut ops = Vec::new();
+    let mut i = 0;
+
+    while i < tokens.len() {
+        match &tokens[i] {
+            Token::Int(n, span) => {
+                ops.push(Op::PushInt(*n, Some(*span)));
+            }
+            Token::Float(f, span) => {
+                ops.push(Op::PushFloat(*f, Some(*span)));
+            }
+            Token::Str(s, span) => ops.push(Op::PushStr(Arc::from(s.as_str()), Some(*span))),
+            Token::Word(w, span) => {
+                let word = w.as_str();
+                if word == "(" {
+                    let (quote_ops, consumed, end_span) =
+                        compile_quotation(&tokens[i + 1..], dict)?;
+                    i += consumed;
+                    let body_span = SourceSpan {
+                        start: span.start,
+                        end: end_span.end,
+                    };
+                    ops.push(Op::Quotation(Arc::from(quote_ops), Some(body_span)));
+                } else if word == ")" {
+                    return Err("unexpected )".into());
+                } else if word == "[" {
+                    let (bracket_ops, consumed, end_span) =
+                        compile_bracket(&tokens[i + 1..], dict)?;
+                    i += consumed;
+                    ops.push(Op::Mark);
+                    ops.extend(bracket_ops);
+                    let count_span = SourceSpan {
+                        start: span.start,
+                        end: end_span.end,
+                    };
+                    ops.push(Op::Count(Some(count_span)));
+                } else if word == "]" {
+                    return Err("unexpected ]".into());
+                } else if word == ":" {
+                    let (consumed, name, body) = compile_colon_def(&tokens[i + 1..], dict)?;
+                    i += consumed;
+                    dict.lock().insert(name, body);
+                } else if word == ";" {
+                    return Err("unexpected ;".into());
+                } else if word == "if" {
+                    let (then_ops, else_ops, consumed, then_span, else_span) =
+                        compile_if(&tokens[i + 1..], dict)?;
+                    i += consumed;
+                    if else_ops.is_empty() {
+                        ops.push(Op::BranchIfZero(then_ops.len(), then_span, None));
+                        ops.extend(then_ops);
+                    } else {
+                        ops.push(Op::BranchIfZero(then_ops.len() + 1, then_span, else_span));
+                        ops.extend(then_ops);
+                        ops.push(Op::Branch(else_ops.len()));
+                        ops.extend(else_ops);
+                    }
+                } else if word == "at" {
+                    if let Some((body_ops, consumed)) = compile_at(&tokens[i + 1..], dict)? {
+                        i += consumed;
+                        ops.push(Op::AtLoop(Arc::from(body_ops)));
+                    } else if !compile_word(word, Some(*span), &mut ops, dict) {
+                        return Err(format!("unknown word: {word}"));
+                    }
+                } else if word == "case" {
+                    let (case_ops, consumed) = compile_case(&tokens[i + 1..], dict)?;
+                    i += consumed;
+                    ops.extend(case_ops);
+                } else if word == "of" || word == "endof" || word == "endcase" {
+                    return Err(format!("unexpected '{word}'"));
+                } else if !compile_word(word, Some(*span), &mut ops, dict) {
+                    return Err(format!("unknown word: {word}"));
+                }
+            }
+        }
+        i += 1;
+    }
+
+    Ok(ops)
+}
+
+fn compile_quotation(
+    tokens: &[Token],
+    dict: &Dictionary,
+) -> Result<(Vec<Op>, usize, SourceSpan), String> {
+    let mut depth = 1;
+    let mut end_idx = None;
+
+    for (i, tok) in tokens.iter().enumerate() {
+        if let Token::Word(w, _) = tok {
+            match w.as_str() {
+                "(" => depth += 1,
+                ")" => {
+                    depth -= 1;
+                    if depth == 0 {
+                        end_idx = Some(i);
+                        break;
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
+    let end_idx = end_idx.ok_or("missing )")?;
+    let end_span = match &tokens[end_idx] {
+        Token::Word(_, span) => *span,
+        _ => unreachable!(),
+    };
+    let quote_ops = compile(&tokens[..end_idx], dict)?;
+    Ok((quote_ops, end_idx + 1, end_span))
+}
+
+fn compile_bracket(
+    tokens: &[Token],
+    dict: &Dictionary,
+) -> Result<(Vec<Op>, usize, SourceSpan), String> {
+    let mut depth = 1;
+    let mut end_idx = None;
+
+    for (i, tok) in tokens.iter().enumerate() {
+        if let Token::Word(w, _) = tok {
+            match w.as_str() {
+                "[" => depth += 1,
+                "]" => {
+                    depth -= 1;
+                    if depth == 0 {
+                        end_idx = Some(i);
+                        break;
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
+    let end_idx = end_idx.ok_or("missing ]")?;
+    let end_span = match &tokens[end_idx] {
+        Token::Word(_, span) => *span,
+        _ => unreachable!(),
+    };
+    let body_ops = compile(&tokens[..end_idx], dict)?;
+    Ok((body_ops, end_idx + 1, end_span))
+}
+
+fn token_span(tok: &Token) -> Option<SourceSpan> {
+    match tok {
+        Token::Int(_, s) | Token::Float(_, s) | Token::Str(_, s) | Token::Word(_, s) => Some(*s),
+    }
+}
+
+fn compile_colon_def(
+    tokens: &[Token],
+    dict: &Dictionary,
+) -> Result<(usize, String, Vec<Op>), String> {
+    if tokens.is_empty() {
+        return Err("expected word name after ':'".into());
+    }
+    let name = match &tokens[0] {
+        Token::Word(w, _) => w.clone(),
+        Token::Int(n, _) => n.to_string(),
+        Token::Float(f, _) => f.to_string(),
+        Token::Str(s, _) => s.clone(),
+    };
+    let mut semi_pos = None;
+    for (i, tok) in tokens[1..].iter().enumerate() {
+        if let Token::Word(w, _) = tok {
+            if w == ";" {
+                semi_pos = Some(i + 1);
+                break;
+            }
+        }
+    }
+    let semi_pos = semi_pos.ok_or("missing ';' in word definition")?;
+    let body_tokens = &tokens[1..semi_pos];
+    let body_ops = compile(body_tokens, dict)?;
+    Ok((semi_pos + 1, name, body_ops))
+}
+
+fn tokens_span(tokens: &[Token]) -> Option<SourceSpan> {
+    let first = tokens.first().and_then(token_span)?;
+    let last = tokens.last().and_then(token_span)?;
+    Some(SourceSpan {
+        start: first.start,
+        end: last.end,
+    })
+}
+
+#[allow(clippy::type_complexity)]
+fn compile_if(
+    tokens: &[Token],
+    dict: &Dictionary,
+) -> Result<
+    (
+        Vec<Op>,
+        Vec<Op>,
+        usize,
+        Option<SourceSpan>,
+        Option<SourceSpan>,
+    ),
+    String,
+> {
+    let mut depth = 1;
+    let mut else_pos = None;
+    let mut then_pos = None;
+
+    for (i, tok) in tokens.iter().enumerate() {
+        if let Token::Word(w, _) = tok {
+            match w.as_str() {
+                "if" => depth += 1,
+                "else" if depth == 1 => else_pos = Some(i),
+                "then" => {
+                    depth -= 1;
+                    if depth == 0 {
+                        then_pos = Some(i);
+                        break;
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
+    let then_pos = then_pos.ok_or("missing 'then'")?;
+
+    let (then_ops, else_ops, then_span, else_span) = if let Some(ep) = else_pos {
+        let then_slice = &tokens[..ep];
+        let else_slice = &tokens[ep + 1..then_pos];
+        let then_span = tokens_span(then_slice);
+        let else_span = tokens_span(else_slice);
+        let then_ops = compile(then_slice, dict)?;
+        let else_ops = compile(else_slice, dict)?;
+        (then_ops, else_ops, then_span, else_span)
+    } else {
+        let then_slice = &tokens[..then_pos];
+        let then_span = tokens_span(then_slice);
+        let then_ops = compile(then_slice, dict)?;
+        (then_ops, Vec::new(), then_span, None)
+    };
+
+    Ok((then_ops, else_ops, then_pos + 1, then_span, else_span))
+}
+
+fn compile_at(tokens: &[Token], dict: &Dictionary) -> Result<Option<(Vec<Op>, usize)>, String> {
+    let mut depth = 1;
+
+    enum AtCloser { Dot, MidiDot, Done }
+    let mut found: Option<(usize, AtCloser)> = None;
+
+    for (i, tok) in tokens.iter().enumerate() {
+        if let Token::Word(w, _) = tok {
+            match w.as_str() {
+                "at" => depth += 1,
+                "." if depth == 1 => { found = Some((i, AtCloser::Dot)); break; }
+                "m." if depth == 1 => { found = Some((i, AtCloser::MidiDot)); break; }
+                "done" if depth == 1 => { found = Some((i, AtCloser::Done)); break; }
+                "." | "m." | "done" => depth -= 1,
+                _ => {}
+            }
+        }
+    }
+
+    let Some((pos, closer)) = found else {
+        return Ok(None);
+    };
+    let mut body_ops = compile(&tokens[..pos], dict)?;
+    match closer {
+        AtCloser::Dot => body_ops.push(Op::Emit),
+        AtCloser::MidiDot => body_ops.push(Op::MidiEmit),
+        AtCloser::Done => {}
+    }
+    Ok(Some((body_ops, pos + 1)))
+}
+
+fn compile_case(tokens: &[Token], dict: &Dictionary) -> Result<(Vec<Op>, usize), String> {
+    let mut depth = 1;
+    let mut endcase_pos = None;
+    let mut clauses: Vec<(usize, usize)> = Vec::new();
+    let mut last_of = None;
+
+    for (i, tok) in tokens.iter().enumerate() {
+        if let Token::Word(w, _) = tok {
+            match w.as_str() {
+                "case" => depth += 1,
+                "endcase" => {
+                    depth -= 1;
+                    if depth == 0 {
+                        endcase_pos = Some(i);
+                        break;
+                    }
+                }
+                "of" if depth == 1 => last_of = Some(i),
+                "endof" if depth == 1 => {
+                    let of_pos = last_of.ok_or("'endof' without matching 'of'")?;
+                    clauses.push((of_pos, i));
+                    last_of = None;
+                }
+                _ => {}
+            }
+        }
+    }
+
+    let endcase_pos = endcase_pos.ok_or("missing 'endcase'")?;
+
+    let mut ops = Vec::new();
+    let mut branch_fixups: Vec<usize> = Vec::new();
+    let mut clause_start = 0;
+
+    for &(of_pos, endof_pos) in &clauses {
+        let test_ops = compile(&tokens[clause_start..of_pos], dict)?;
+        let body_ops = compile(&tokens[of_pos + 1..endof_pos], dict)?;
+
+        ops.extend(test_ops);
+        ops.push(Op::Over);
+        ops.push(Op::Eq);
+        ops.push(Op::BranchIfZero(body_ops.len() + 2, None, None));
+        ops.push(Op::Drop);
+        ops.extend(body_ops);
+        branch_fixups.push(ops.len());
+        ops.push(Op::Branch(0));
+
+        clause_start = endof_pos + 1;
+    }
+
+    let default_tokens = &tokens[clause_start..endcase_pos];
+    if !default_tokens.is_empty() {
+        let default_ops = compile(default_tokens, dict)?;
+        ops.extend(default_ops);
+    }
+
+    ops.push(Op::Drop);
+
+    let end = ops.len();
+    for pos in branch_fixups {
+        ops[pos] = Op::Branch(end - pos - 1);
+    }
+
+    Ok((ops, endcase_pos + 1))
+}

crates/forth/src/lib.rs

@@ -0,0 +1,15 @@
+//! Forth virtual machine for the Cagire music sequencer.
+
+mod compiler;
+mod ops;
+mod theory;
+mod types;
+mod vm;
+mod words;
+
+pub use types::{
+    CcAccess, Dictionary, ExecutionTrace, ResolvedValue, Rng, SourceSpan, StepContext, Value,
+    Variables, VariablesMap,
+};
+pub use vm::Forth;
+pub use words::{lookup_word, Word, WordCompile, WORDS};

crates/forth/src/ops.rs

@@ -0,0 +1,159 @@
+//! Compiled operation variants for the Forth VM instruction set.
+
+use std::sync::Arc;
+
+use super::types::SourceSpan;
+
+/// Single VM instruction produced by the compiler.
+#[derive(Clone, Debug, PartialEq)]
+pub enum Op {
+    PushInt(i64, Option<SourceSpan>),
+    PushFloat(f64, Option<SourceSpan>),
+    PushStr(Arc<str>, Option<SourceSpan>),
+    Dup,
+    Dupn,
+    Drop,
+    Swap,
+    Over,
+    Rot,
+    Nip,
+    Tuck,
+    Dup2,
+    Drop2,
+    Swap2,
+    Over2,
+    Rev,
+    Shuffle,
+    Sort,
+    RSort,
+    Sum,
+    Prod,
+    Forget,
+    Add,
+    Sub,
+    Mul,
+    Div,
+    Mod,
+    Neg,
+    Abs,
+    Floor,
+    Ceil,
+    Round,
+    Min,
+    Max,
+    Pow,
+    Sqrt,
+    Sin,
+    Cos,
+    Log,
+    Eq,
+    Ne,
+    Lt,
+    Gt,
+    Le,
+    Ge,
+    And,
+    Or,
+    Not,
+    Xor,
+    Nand,
+    Nor,
+    IfElse,
+    Pick,
+    BranchIfZero(usize, Option<SourceSpan>, Option<SourceSpan>),
+    Branch(usize),
+    NewCmd,
+    SetParam(&'static str),
+    Emit,
+    Print,
+    Get,
+    Set,
+    SetKeep,
+    GetContext(&'static str),
+    Rand(Option<SourceSpan>),
+    ExpRand(Option<SourceSpan>),
+    LogRand(Option<SourceSpan>),
+    Seed,
+    Cycle(Option<SourceSpan>),
+    PCycle(Option<SourceSpan>),
+    Choose(Option<SourceSpan>),
+    Bounce(Option<SourceSpan>),
+    PBounce(Option<SourceSpan>),
+    WChoose(Option<SourceSpan>),
+    ChanceExec(Option<SourceSpan>),
+    ProbExec(Option<SourceSpan>),
+    Coin(Option<SourceSpan>),
+    Mtof,
+    Ftom,
+    SetTempo,
+    Every(Option<SourceSpan>),
+    Except(Option<SourceSpan>),
+    EveryOffset(Option<SourceSpan>),
+    ExceptOffset(Option<SourceSpan>),
+    Bjork(Option<SourceSpan>),
+    PBjork(Option<SourceSpan>),
+    Quotation(Arc<[Op]>, Option<SourceSpan>),
+    When,
+    Unless,
+    Adsr,
+    Ad,
+    Apply,
+    Ramp,
+    Triangle,
+    Range,
+    LinMap,
+    ExpMap,
+    Perlin,
+    Loop,
+    Degree(&'static [i64]),
+    Oct,
+    ClearCmd,
+    SetSpeed,
+    At,
+    AtLoop(Arc<[Op]>),
+
+    IntRange,
+    StepRange,
+    Generate,
+    GeomRange,
+    Euclid,
+    EuclidRot,
+    Times,
+    Map,
+    Chord(&'static [i64]),
+    Transpose,
+    Invert,
+    DownInvert,
+    VoiceDrop2,
+    VoiceDrop3,
+    SetKey,
+    DiatonicTriad(&'static [i64]),
+    DiatonicSeventh(&'static [i64]),
+    // Audio-rate modulation DSL
+    ModLfo(u8),
+    ModSlide(u8),
+    ModRnd(u8),
+    ModEnv,
+    ModEnvAd,
+    ModEnvAdr,
+    Lpg,
+    // Global params
+    EmitAll,
+    ClearGlobal,
+    // MIDI
+    MidiEmit,
+    GetMidiCC,
+    MidiClock,
+    MidiStart,
+    MidiStop,
+    MidiContinue,
+    // Recording
+    Rec,
+    Overdub,
+    Orec,
+    Odub,
+    // Bracket syntax (mark/count for auto-counting)
+    Mark,
+    Count(Option<SourceSpan>),
+    Index(Option<SourceSpan>),
+}

crates/forth/src/theory/chords.rs

@@ -0,0 +1,179 @@
+//! Chord definitions as semitone interval arrays.
+
+/// Named chord with its interval pattern.
+pub struct Chord {
+    pub name: &'static str,
+    pub intervals: &'static [i64],
+}
+
+/// All built-in chord types.
+pub static CHORDS: &[Chord] = &[
+    // Triads
+    Chord {
+        name: "maj",
+        intervals: &[0, 4, 7],
+    },
+    Chord {
+        name: "m",
+        intervals: &[0, 3, 7],
+    },
+    Chord {
+        name: "dim",
+        intervals: &[0, 3, 6],
+    },
+    Chord {
+        name: "aug",
+        intervals: &[0, 4, 8],
+    },
+    Chord {
+        name: "sus2",
+        intervals: &[0, 2, 7],
+    },
+    Chord {
+        name: "sus4",
+        intervals: &[0, 5, 7],
+    },
+    // Seventh chords
+    Chord {
+        name: "maj7",
+        intervals: &[0, 4, 7, 11],
+    },
+    Chord {
+        name: "min7",
+        intervals: &[0, 3, 7, 10],
+    },
+    Chord {
+        name: "dom7",
+        intervals: &[0, 4, 7, 10],
+    },
+    Chord {
+        name: "dim7",
+        intervals: &[0, 3, 6, 9],
+    },
+    Chord {
+        name: "m7b5",
+        intervals: &[0, 3, 6, 10],
+    },
+    Chord {
+        name: "minmaj7",
+        intervals: &[0, 3, 7, 11],
+    },
+    Chord {
+        name: "aug7",
+        intervals: &[0, 4, 8, 10],
+    },
+    // Sixth chords
+    Chord {
+        name: "maj6",
+        intervals: &[0, 4, 7, 9],
+    },
+    Chord {
+        name: "min6",
+        intervals: &[0, 3, 7, 9],
+    },
+    // Extended chords
+    Chord {
+        name: "dom9",
+        intervals: &[0, 4, 7, 10, 14],
+    },
+    Chord {
+        name: "maj9",
+        intervals: &[0, 4, 7, 11, 14],
+    },
+    Chord {
+        name: "min9",
+        intervals: &[0, 3, 7, 10, 14],
+    },
+    Chord {
+        name: "dom11",
+        intervals: &[0, 4, 7, 10, 14, 17],
+    },
+    Chord {
+        name: "min11",
+        intervals: &[0, 3, 7, 10, 14, 17],
+    },
+    Chord {
+        name: "dom13",
+        intervals: &[0, 4, 7, 10, 14, 21],
+    },
+    // Add chords
+    Chord {
+        name: "add9",
+        intervals: &[0, 4, 7, 14],
+    },
+    Chord {
+        name: "add11",
+        intervals: &[0, 4, 7, 17],
+    },
+    Chord {
+        name: "madd9",
+        intervals: &[0, 3, 7, 14],
+    },
+    // Power chord
+    Chord {
+        name: "pwr",
+        intervals: &[0, 7],
+    },
+    // Suspended seventh
+    Chord {
+        name: "7sus4",
+        intervals: &[0, 5, 7, 10],
+    },
+    Chord {
+        name: "9sus4",
+        intervals: &[0, 5, 7, 10, 14],
+    },
+    // Augmented major
+    Chord {
+        name: "augmaj7",
+        intervals: &[0, 4, 8, 11],
+    },
+    // 6/9 chords
+    Chord {
+        name: "maj69",
+        intervals: &[0, 4, 7, 9, 14],
+    },
+    Chord {
+        name: "min69",
+        intervals: &[0, 3, 7, 9, 14],
+    },
+    // Extended
+    Chord {
+        name: "maj11",
+        intervals: &[0, 4, 7, 11, 14, 17],
+    },
+    Chord {
+        name: "maj13",
+        intervals: &[0, 4, 7, 11, 14, 21],
+    },
+    Chord {
+        name: "min13",
+        intervals: &[0, 3, 7, 10, 14, 21],
+    },
+    // Altered dominants
+    Chord {
+        name: "dom7b9",
+        intervals: &[0, 4, 7, 10, 13],
+    },
+    Chord {
+        name: "dom7s9",
+        intervals: &[0, 4, 7, 10, 15],
+    },
+    Chord {
+        name: "dom7b5",
+        intervals: &[0, 4, 6, 10],
+    },
+    Chord {
+        name: "dom7s5",
+        intervals: &[0, 4, 8, 10],
+    },
+    Chord {
+        name: "dom7s11",
+        intervals: &[0, 4, 7, 10, 18],
+    },
+];
+
+/// Find a chord's intervals by name.
+pub fn lookup(name: &str) -> Option<&'static [i64]> {
+    CHORDS.iter().find(|c| c.name == name).map(|c| c.intervals)
+}

crates/forth/src/theory/mod.rs

@@ -0,0 +1,6 @@
+//! Music theory data — chord and scale lookup tables.
+
+pub mod chords;
+mod scales;
+
+pub use scales::lookup;

crates/forth/src/theory/scales.rs

@@ -0,0 +1,135 @@
+//! Scale definitions as semitone offset arrays.
+
+/// Named scale with its semitone pattern.
+pub struct Scale {
+    pub name: &'static str,
+    pub pattern: &'static [i64],
+}
+
+/// All built-in scale types.
+pub static SCALES: &[Scale] = &[
+    Scale {
+        name: "major",
+        pattern: &[0, 2, 4, 5, 7, 9, 11],
+    },
+    Scale {
+        name: "minor",
+        pattern: &[0, 2, 3, 5, 7, 8, 10],
+    },
+    Scale {
+        name: "dorian",
+        pattern: &[0, 2, 3, 5, 7, 9, 10],
+    },
+    Scale {
+        name: "phrygian",
+        pattern: &[0, 1, 3, 5, 7, 8, 10],
+    },
+    Scale {
+        name: "lydian",
+        pattern: &[0, 2, 4, 6, 7, 9, 11],
+    },
+    Scale {
+        name: "mixolydian",
+        pattern: &[0, 2, 4, 5, 7, 9, 10],
+    },
+    Scale {
+        name: "aeolian",
+        pattern: &[0, 2, 3, 5, 7, 8, 10],
+    },
+    Scale {
+        name: "locrian",
+        pattern: &[0, 1, 3, 5, 6, 8, 10],
+    },
+    Scale {
+        name: "pentatonic",
+        pattern: &[0, 2, 4, 7, 9],
+    },
+    Scale {
+        name: "minpent",
+        pattern: &[0, 3, 5, 7, 10],
+    },
+    Scale {
+        name: "blues",
+        pattern: &[0, 3, 5, 6, 7, 10],
+    },
+    Scale {
+        name: "chromatic",
+        pattern: &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11],
+    },
+    Scale {
+        name: "wholetone",
+        pattern: &[0, 2, 4, 6, 8, 10],
+    },
+    Scale {
+        name: "harmonicminor",
+        pattern: &[0, 2, 3, 5, 7, 8, 11],
+    },
+    Scale {
+        name: "melodicminor",
+        pattern: &[0, 2, 3, 5, 7, 9, 11],
+    },
+    // Jazz/Bebop
+    Scale {
+        name: "bebop",
+        pattern: &[0, 2, 4, 5, 7, 9, 10, 11],
+    },
+    Scale {
+        name: "bebopmaj",
+        pattern: &[0, 2, 4, 5, 7, 8, 9, 11],
+    },
+    Scale {
+        name: "bebopmin",
+        pattern: &[0, 2, 3, 5, 7, 8, 9, 10],
+    },
+    Scale {
+        name: "altered",
+        pattern: &[0, 1, 3, 4, 6, 8, 10],
+    },
+    Scale {
+        name: "lyddom",
+        pattern: &[0, 2, 4, 6, 7, 9, 10],
+    },
+    Scale {
+        name: "halfwhole",
+        pattern: &[0, 1, 3, 4, 6, 7, 9, 10],
+    },
+    Scale {
+        name: "wholehalf",
+        pattern: &[0, 2, 3, 5, 6, 8, 9, 11],
+    },
+    // Symmetric
+    Scale {
+        name: "augmented",
+        pattern: &[0, 3, 4, 7, 8, 11],
+    },
+    Scale {
+        name: "tritone",
+        pattern: &[0, 1, 4, 6, 7, 10],
+    },
+    Scale {
+        name: "prometheus",
+        pattern: &[0, 2, 4, 6, 9, 10],
+    },
+    // Modal variants (from melodic minor)
+    Scale {
+        name: "dorianb2",
+        pattern: &[0, 1, 3, 5, 7, 9, 10],
+    },
+    Scale {
+        name: "lydianaug",
+        pattern: &[0, 2, 4, 6, 8, 9, 11],
+    },
+    Scale {
+        name: "mixb6",
+        pattern: &[0, 2, 4, 5, 7, 8, 10],
+    },
+    Scale {
+        name: "locrian2",
+        pattern: &[0, 2, 3, 5, 6, 8, 10],
+    },
+];
+
+/// Find a scale's pattern by name.
+pub fn lookup(name: &str) -> Option<&'static [i64]> {
+    SCALES.iter().find(|s| s.name == name).map(|s| s.pattern)
+}

crates/forth/src/types.rs

@@ -0,0 +1,264 @@
+//! Core types for the Forth VM: values, execution context, and shared state.
+
+use arc_swap::ArcSwap;
+use parking_lot::Mutex;
+use rand::rngs::StdRng;
+use std::collections::HashMap;
+use std::sync::Arc;
+
+use super::ops::Op;
+
+/// Trait for accessing MIDI CC values. Implement this to provide CC memory to the Forth VM.
+pub trait CcAccess: Send + Sync {
+    /// Get the CC value for a given device, channel (0-15), and CC number (0-127).
+    fn get_cc(&self, device: usize, channel: usize, cc: usize) -> u8;
+}
+
+/// Byte range in source text.
+#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
+pub struct SourceSpan {
+    pub start: u32,
+    pub end: u32,
+}
+
+/// Concrete value resolved from a nondeterministic op, used for trace annotations.
+#[derive(Clone, Debug)]
+pub enum ResolvedValue {
+    Int(i64),
+    Float(f64),
+    Bool(bool),
+    Str(Arc<str>),
+}
+
+impl ResolvedValue {
+    pub fn display(&self) -> String {
+        match self {
+            ResolvedValue::Int(i) => i.to_string(),
+            ResolvedValue::Float(f) => format!("{f:.2}"),
+            ResolvedValue::Bool(b) => if *b { "yes" } else { "no" }.into(),
+            ResolvedValue::Str(s) => s.to_string(),
+        }
+    }
+}
+
+/// Spans and resolved values collected during a single evaluation, used for UI highlighting.
+#[derive(Clone, Debug, Default)]
+pub struct ExecutionTrace {
+    pub executed_spans: Vec<SourceSpan>,
+    pub selected_spans: Vec<SourceSpan>,
+    pub resolved: Vec<(SourceSpan, ResolvedValue)>,
+}
+
+/// Per-step sequencer state passed into the VM.
+pub struct StepContext<'a> {
+    pub step: usize,
+    pub beat: f64,
+    pub bank: usize,
+    pub pattern: usize,
+    pub tempo: f64,
+    pub phase: f64,
+    pub slot: usize,
+    pub runs: usize,
+    pub iter: usize,
+    pub speed: f64,
+    pub fill: bool,
+    pub nudge_secs: f64,
+    pub sr: f64,
+    pub cc_access: Option<&'a dyn CcAccess>,
+    pub speed_key: &'a str,
+    pub mouse_x: f64,
+    pub mouse_y: f64,
+    pub mouse_down: f64,
+}
+
+impl StepContext<'_> {
+    pub fn step_duration(&self) -> f64 {
+        60.0 / self.tempo / 4.0 / self.speed
+    }
+}
+
+/// Underlying map for user-defined variables.
+pub type VariablesMap = HashMap<String, Value>;
+/// Shared variable store, swapped atomically after each step.
+pub type Variables = Arc<ArcSwap<VariablesMap>>;
+/// Shared user-defined word dictionary.
+pub type Dictionary = Arc<Mutex<HashMap<String, Vec<Op>>>>;
+/// Shared random number generator.
+pub type Rng = Arc<Mutex<StdRng>>;
+pub type Stack = Mutex<Vec<Value>>;
+pub(super) type CmdSnapshot<'a> = (Option<&'a Value>, &'a [(&'static str, Value)]);
+
+/// Stack value in the Forth VM.
+#[derive(Clone, Debug)]
+pub enum Value {
+    Int(i64, Option<SourceSpan>),
+    Float(f64, Option<SourceSpan>),
+    Str(Arc<str>, Option<SourceSpan>),
+    Quotation(Arc<[Op]>, Option<SourceSpan>),
+    CycleList(Arc<[Value]>),
+
+}
+
+impl PartialEq for Value {
+    fn eq(&self, other: &Self) -> bool {
+        match (self, other) {
+            (Value::Int(a, _), Value::Int(b, _)) => a == b,
+            (Value::Float(a, _), Value::Float(b, _)) => a == b,
+            (Value::Str(a, _), Value::Str(b, _)) => a == b,
+            (Value::Quotation(a, _), Value::Quotation(b, _)) => a == b,
+            (Value::CycleList(a), Value::CycleList(b)) => a == b,
+
+            _ => false,
+        }
+    }
+}
+
+impl Value {
+    pub fn as_float(&self) -> Result<f64, String> {
+        match self {
+            Value::Float(f, _) => Ok(*f),
+            Value::Int(i, _) => Ok(*i as f64),
+            _ => Err("expected number".into()),
+        }
+    }
+
+    pub(super) fn as_int(&self) -> Result<i64, String> {
+        match self {
+            Value::Int(i, _) => Ok(*i),
+            Value::Float(f, _) => Ok(*f as i64),
+            _ => Err("expected number".into()),
+        }
+    }
+
+    pub(super) fn as_str(&self) -> Result<&str, String> {
+        match self {
+            Value::Str(s, _) => Ok(s),
+            _ => Err("expected string".into()),
+        }
+    }
+
+    pub(super) fn is_truthy(&self) -> bool {
+        match self {
+            Value::Int(i, _) => *i != 0,
+            Value::Float(f, _) => *f != 0.0,
+            Value::Str(s, _) => !s.is_empty(),
+            Value::Quotation(..) => true,
+            Value::CycleList(items) => !items.is_empty(),
+        }
+    }
+
+    pub(super) fn to_param_string(&self) -> String {
+        match self {
+            Value::Int(i, _) => i.to_string(),
+            Value::Float(f, _) => f.to_string(),
+            Value::Str(s, _) => s.to_string(),
+            Value::Quotation(..) => String::new(),
+            Value::CycleList(_) => String::new(),
+        }
+    }
+
+    pub(super) fn span(&self) -> Option<SourceSpan> {
+        match self {
+            Value::Int(_, s) | Value::Float(_, s) | Value::Str(_, s) | Value::Quotation(_, s) => *s,
+            Value::CycleList(_) => None,
+        }
+    }
+}
+
+#[derive(Clone, Debug, Default)]
+pub(super) struct CmdRegister {
+    sound: Option<Value>,
+    params: Vec<(&'static str, Value)>,
+    deltas: Vec<Value>,
+    global_params: Vec<(&'static str, Value)>,
+    delta_secs: Option<f64>,
+}
+
+impl CmdRegister {
+    pub(super) fn new() -> Self {
+        Self {
+            sound: None,
+            params: Vec::with_capacity(16),
+            deltas: Vec::with_capacity(4),
+            global_params: Vec::new(),
+            delta_secs: None,
+        }
+    }
+
+    pub(super) fn set_sound(&mut self, val: Value) {
+        self.sound = Some(val);
+    }
+
+    pub(super) fn set_param(&mut self, key: &'static str, val: Value) {
+        self.params.push((key, val));
+    }
+
+    pub(super) fn set_deltas(&mut self, deltas: Vec<Value>) {
+        self.deltas = deltas;
+    }
+
+    pub(super) fn deltas(&self) -> &[Value] {
+        &self.deltas
+    }
+
+    pub(super) fn sound(&self) -> Option<&Value> {
+        self.sound.as_ref()
+    }
+
+    pub(super) fn params(&self) -> &[(&'static str, Value)] {
+        &self.params
+    }
+
+    pub(super) fn snapshot(&self) -> Option<CmdSnapshot<'_>> {
+        if self.sound.is_some() || !self.params.is_empty() {
+            Some((self.sound.as_ref(), self.params.as_slice()))
+        } else {
+            None
+        }
+    }
+
+    pub(super) fn global_params(&self) -> &[(&'static str, Value)] {
+        &self.global_params
+    }
+
+    pub(super) fn commit_global(&mut self) {
+        self.global_params.append(&mut self.params);
+        self.sound = None;
+        self.deltas.clear();
+    }
+
+    pub(super) fn clear_global(&mut self) {
+        self.global_params.clear();
+    }
+
+    pub fn set_global(&mut self, params: Vec<(&'static str, Value)>) {
+        self.global_params = params;
+    }
+
+    pub fn take_global(&mut self) -> Vec<(&'static str, Value)> {
+        std::mem::take(&mut self.global_params)
+    }
+
+    pub(super) fn set_delta_secs(&mut self, secs: f64) {
+        self.delta_secs = Some(secs);
+    }
+
+    pub(super) fn take_delta_secs(&mut self) -> Option<f64> {
+        self.delta_secs.take()
+    }
+
+    pub(super) fn clear_sound(&mut self) {
+        self.sound = None;
+    }
+
+    pub(super) fn clear_params(&mut self) {
+        self.params.clear();
+    }
+
+    pub(super) fn clear(&mut self) {
+        self.sound = None;
+        self.params.clear();
+        self.deltas.clear();
+        self.delta_secs = None;
+    }
+}

crates/forth/src/words/compile.rs

@@ -0,0 +1,350 @@
+//! Word-to-Op translation: maps Forth word names to compiled instructions.
+
+use std::sync::Arc;
+
+use crate::ops::Op;
+use crate::theory;
+use crate::types::{Dictionary, SourceSpan};
+
+use super::{lookup_word, WordCompile::*};
+
+pub(super) fn simple_op(name: &str) -> Option<Op> {
+    Some(match name {
+        "dup" => Op::Dup,
+        "dupn" => Op::Dupn,
+        "drop" => Op::Drop,
+        "print" => Op::Print,
+        "swap" => Op::Swap,
+        "over" => Op::Over,
+        "rot" => Op::Rot,
+        "nip" => Op::Nip,
+        "tuck" => Op::Tuck,
+        "2dup" => Op::Dup2,
+        "2drop" => Op::Drop2,
+        "2swap" => Op::Swap2,
+        "2over" => Op::Over2,
+        "rev" => Op::Rev,
+        "shuffle" => Op::Shuffle,
+        "sort" => Op::Sort,
+        "rsort" => Op::RSort,
+        "sum" => Op::Sum,
+        "prod" => Op::Prod,
+        "+" => Op::Add,
+        "-" => Op::Sub,
+        "*" => Op::Mul,
+        "/" => Op::Div,
+        "mod" => Op::Mod,
+        "neg" => Op::Neg,
+        "abs" => Op::Abs,
+        "floor" => Op::Floor,
+        "ceil" => Op::Ceil,
+        "round" => Op::Round,
+        "min" => Op::Min,
+        "max" => Op::Max,
+        "pow" => Op::Pow,
+        "sqrt" => Op::Sqrt,
+        "sin" => Op::Sin,
+        "cos" => Op::Cos,
+        "log" => Op::Log,
+        "=" => Op::Eq,
+        "!=" => Op::Ne,
+        "lt" => Op::Lt,
+        "gt" => Op::Gt,
+        "<=" => Op::Le,
+        ">=" => Op::Ge,
+        "and" => Op::And,
+        "or" => Op::Or,
+        "not" => Op::Not,
+        "xor" => Op::Xor,
+        "nand" => Op::Nand,
+        "nor" => Op::Nor,
+        "ifelse" => Op::IfElse,
+        "select" => Op::Pick,
+        "sound" => Op::NewCmd,
+        "." => Op::Emit,
+        "rand" => Op::Rand(None),
+        "exprand" => Op::ExpRand(None),
+        "logrand" => Op::LogRand(None),
+        "seed" => Op::Seed,
+        "cycle" => Op::Cycle(None),
+        "pcycle" => Op::PCycle(None),
+        "choose" => Op::Choose(None),
+        "bounce" => Op::Bounce(None),
+        "pbounce" => Op::PBounce(None),
+        "wchoose" => Op::WChoose(None),
+        "every" => Op::Every(None),
+        "except" => Op::Except(None),
+        "every+" => Op::EveryOffset(None),
+        "except+" => Op::ExceptOffset(None),
+        "bjork" => Op::Bjork(None),
+        "pbjork" => Op::PBjork(None),
+        "chance" => Op::ChanceExec(None),
+        "prob" => Op::ProbExec(None),
+        "coin" => Op::Coin(None),
+        "mtof" => Op::Mtof,
+        "ftom" => Op::Ftom,
+        "?" => Op::When,
+        "!?" => Op::Unless,
+        "tempo!" => Op::SetTempo,
+        "speed!" => Op::SetSpeed,
+        "at" => Op::At,
+
+        "adsr" => Op::Adsr,
+        "ad" => Op::Ad,
+        "apply" => Op::Apply,
+        "ramp" => Op::Ramp,
+        "triangle" => Op::Triangle,
+        "range" => Op::Range,
+        "linmap" => Op::LinMap,
+        "expmap" => Op::ExpMap,
+        "perlin" => Op::Perlin,
+        "loop" => Op::Loop,
+        "oct" => Op::Oct,
+        "clear" => Op::ClearCmd,
+        "all" => Op::EmitAll,
+        "noall" => Op::ClearGlobal,
+        ".." => Op::IntRange,
+        ".," => Op::StepRange,
+        "gen" => Op::Generate,
+        "geom.." => Op::GeomRange,
+        "euclid" => Op::Euclid,
+        "euclidrot" => Op::EuclidRot,
+        "times" => Op::Times,
+        "map" => Op::Map,
+        "m." => Op::MidiEmit,
+        "ccval" => Op::GetMidiCC,
+        "mclock" => Op::MidiClock,
+        "mstart" => Op::MidiStart,
+        "mstop" => Op::MidiStop,
+        "mcont" => Op::MidiContinue,
+        "rec" => Op::Rec,
+        "overdub" | "dub" => Op::Overdub,
+        "orec" => Op::Orec,
+        "odub" => Op::Odub,
+        "forget" => Op::Forget,
+        "index" => Op::Index(None),
+        "key!" => Op::SetKey,
+        "tp" => Op::Transpose,
+        "inv" => Op::Invert,
+        "dinv" => Op::DownInvert,
+        "drop2" => Op::VoiceDrop2,
+        "drop3" => Op::VoiceDrop3,
+        "lfo" => Op::ModLfo(0),
+        "tlfo" => Op::ModLfo(1),
+        "wlfo" => Op::ModLfo(2),
+        "qlfo" => Op::ModLfo(3),
+        "slide" => Op::ModSlide(0),
+        "expslide" => Op::ModSlide(1),
+        "sslide" => Op::ModSlide(2),
+        "islide" => Op::ModSlide(3),
+        "oslide" => Op::ModSlide(4),
+        "pslide" => Op::ModSlide(5),
+        "jit" => Op::ModRnd(0),
+        "sjit" => Op::ModRnd(1),
+        "drunk" => Op::ModRnd(2),
+        "ead" => Op::ModEnvAd,
+        "eadr" => Op::ModEnvAdr,
+        "eadsr" | "env" => Op::ModEnv,
+        "lpg" => Op::Lpg,
+        _ => return None,
+    })
+}
+
+fn parse_note_name(name: &str) -> Option<i64> {
+    let name = name.to_lowercase();
+    let bytes = name.as_bytes();
+
+    if bytes.len() < 2 {
+        return None;
+    }
+
+    let base = match bytes[0] {
+        b'c' => 0,
+        b'd' => 2,
+        b'e' => 4,
+        b'f' => 5,
+        b'g' => 7,
+        b'a' => 9,
+        b'b' => 11,
+        _ => return None,
+    };
+
+    let (modifier, octave_start) = match bytes[1] {
+        b'#' | b's' => (1, 2),
+        b'b' if bytes.len() > 2 && bytes[2].is_ascii_digit() => (-1, 2),
+        b'0'..=b'9' => (0, 1),
+        _ => return None,
+    };
+
+    let octave_str = &name[octave_start..];
+    let octave: i64 = octave_str.parse().ok()?;
+
+    if !(-1..=9).contains(&octave) {
+        return None;
+    }
+
+    Some((octave + 1) * 12 + base + modifier)
+}
+
+fn parse_interval(name: &str) -> Option<i64> {
+    let simple = match name {
+        "P1" | "unison" => 0,
+        "m2" => 1,
+        "M2" => 2,
+        "m3" => 3,
+        "M3" => 4,
+        "P4" => 5,
+        "aug4" | "dim5" | "tritone" => 6,
+        "P5" => 7,
+        "m6" => 8,
+        "M6" => 9,
+        "m7" => 10,
+        "M7" => 11,
+        "P8" => 12,
+        "m9" => 13,
+        "M9" => 14,
+        "m10" => 15,
+        "M10" => 16,
+        "P11" => 17,
+        "aug11" => 18,
+        "P12" => 19,
+        "m13" => 20,
+        "M13" => 21,
+        "m14" => 22,
+        "M14" => 23,
+        "P15" => 24,
+        _ => return None,
+    };
+    Some(simple)
+}
+
+fn attach_span(op: &mut Op, span: SourceSpan) {
+    match op {
+        Op::Rand(s) | Op::ExpRand(s) | Op::LogRand(s) | Op::Coin(s)
+        | Op::Choose(s) | Op::WChoose(s) | Op::Cycle(s) | Op::PCycle(s)
+        | Op::Bounce(s) | Op::PBounce(s) | Op::ChanceExec(s) | Op::ProbExec(s)
+        | Op::Every(s) | Op::Except(s) | Op::EveryOffset(s) | Op::ExceptOffset(s)
+        | Op::Bjork(s) | Op::PBjork(s)
+        | Op::Count(s) | Op::Index(s) => *s = Some(span),
+        _ => {}
+    }
+}
+
+pub(crate) fn compile_word(
+    name: &str,
+    span: Option<SourceSpan>,
+    ops: &mut Vec<Op>,
+    dict: &Dictionary,
+) -> bool {
+    match name {
+        "linramp" => {
+            ops.push(Op::PushFloat(1.0, span));
+            ops.push(Op::Ramp);
+            return true;
+        }
+        "expramp" => {
+            ops.push(Op::PushFloat(3.0, span));
+            ops.push(Op::Ramp);
+            return true;
+        }
+        "logramp" => {
+            ops.push(Op::PushFloat(0.3, span));
+            ops.push(Op::Ramp);
+            return true;
+        }
+        _ => {}
+    }
+
+    if name == "triad" || name == "seventh" {
+        if let Some(Op::Degree(pattern)) = ops.last() {
+            let pattern = *pattern;
+            ops.pop();
+            ops.push(if name == "triad" {
+                Op::DiatonicTriad(pattern)
+            } else {
+                Op::DiatonicSeventh(pattern)
+            });
+            return true;
+        }
+        return false;
+    }
+
+    if let Some(pattern) = theory::lookup(name) {
+        ops.push(Op::Degree(pattern));
+        return true;
+    }
+
+    if let Some(intervals) = theory::chords::lookup(name) {
+        ops.push(Op::Chord(intervals));
+        return true;
+    }
+
+    if let Some(word) = lookup_word(name) {
+        match &word.compile {
+            Simple => {
+                if let Some(mut op) = simple_op(word.name) {
+                    if let Some(sp) = span {
+                        attach_span(&mut op, sp);
+                    }
+                    ops.push(op);
+                }
+            }
+            Context(ctx) => ops.push(Op::GetContext(ctx)),
+            Param => ops.push(Op::SetParam(word.name)),
+            Probability(p) => {
+                ops.push(Op::PushFloat(*p, None));
+                ops.push(Op::ChanceExec(span));
+            }
+        }
+        return true;
+    }
+
+    if let Some(var_name) = name.strip_prefix('@') {
+        if !var_name.is_empty() {
+            ops.push(Op::PushStr(Arc::from(var_name), span));
+            ops.push(Op::Get);
+            return true;
+        }
+    }
+
+    if let Some(var_name) = name.strip_prefix('!') {
+        if !var_name.is_empty() {
+            ops.push(Op::PushStr(Arc::from(var_name), span));
+            ops.push(Op::Set);
+            return true;
+        }
+    }
+
+    if let Some(var_name) = name.strip_prefix(',') {
+        if !var_name.is_empty() {
+            ops.push(Op::PushStr(Arc::from(var_name), span));
+            ops.push(Op::SetKeep);
+            return true;
+        }
+    }
+
+    if let Some(midi) = parse_note_name(name) {
+        ops.push(Op::PushInt(midi, span));
+        return true;
+    }
+
+    if let Some(semitones) = parse_interval(name) {
+        ops.push(Op::Dup);
+        ops.push(Op::PushInt(semitones, span));
+        ops.push(Op::Add);
+        return true;
+    }
+
+    if let Some(op) = simple_op(name) {
+        ops.push(op);
+        return true;
+    }
+
+    if let Some(body) = dict.lock().get(name) {
+        ops.extend(body.iter().cloned());
+        return true;
+    }
+
+    ops.push(Op::PushStr(Arc::from(name), span));
+    true
+}

crates/forth/src/words/core.rs

@@ -0,0 +1,642 @@
+//! Word metadata for core language primitives (stack, arithmetic, logic, variables, definitions).
+
+use super::{Word, WordCompile::*};
+pub(super) const WORDS: &[Word] = &[
+    // Stack manipulation
+    Word {
+        name: "dup",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a -- a a)",
+        desc: "Duplicate top of stack",
+        example: "3 dup => 3 3",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "dupn",
+        aliases: &["!"],
+        category: "Stack",
+        stack: "(a n -- a a ... a)",
+        desc: "Duplicate a onto stack n times",
+        example: "2 4 dupn => 2 2 2 2",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "drop",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a --)",
+        desc: "Remove top of stack",
+        example: "1 2 drop => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "print",
+        aliases: &[],
+        category: "Stack",
+        stack: "(x --)",
+        desc: "Print top of stack to footer bar",
+        example: "42 print",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "swap",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a b -- b a)",
+        desc: "Exchange top two items",
+        example: "1 2 swap => 2 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "over",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a b -- a b a)",
+        desc: "Copy second to top",
+        example: "1 2 over => 1 2 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "rot",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a b c -- b c a)",
+        desc: "Rotate top three",
+        example: "1 2 3 rot => 2 3 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "nip",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a b -- b)",
+        desc: "Remove second item",
+        example: "1 2 nip => 2",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "tuck",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a b -- b a b)",
+        desc: "Copy top under second",
+        example: "1 2 tuck => 2 1 2",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "2dup",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a b -- a b a b)",
+        desc: "Duplicate top two values",
+        example: "1 2 2dup => 1 2 1 2",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "2drop",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a b --)",
+        desc: "Drop top two values",
+        example: "1 2 3 2drop => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "2swap",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a b c d -- c d a b)",
+        desc: "Swap top two pairs",
+        example: "1 2 3 4 2swap => 3 4 1 2",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "2over",
+        aliases: &[],
+        category: "Stack",
+        stack: "(a b c d -- a b c d a b)",
+        desc: "Copy second pair to top",
+        example: "1 2 3 4 2over => 1 2 3 4 1 2",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "rev",
+        aliases: &[],
+        category: "Stack",
+        stack: "(..n n -- ..n)",
+        desc: "Reverse top n items",
+        example: "1 2 3 3 rev => 3 2 1",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "shuffle",
+        aliases: &[],
+        category: "Stack",
+        stack: "(..n n -- ..n)",
+        desc: "Randomly shuffle top n items",
+        example: "1 2 3 3 shuffle",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "sort",
+        aliases: &[],
+        category: "Stack",
+        stack: "(..n n -- ..n)",
+        desc: "Sort top n items ascending",
+        example: "3 1 2 3 sort => 1 2 3",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "rsort",
+        aliases: &[],
+        category: "Stack",
+        stack: "(..n n -- ..n)",
+        desc: "Sort top n items descending",
+        example: "1 2 3 3 rsort => 3 2 1",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "sum",
+        aliases: &[],
+        category: "Stack",
+        stack: "(..n n -- total)",
+        desc: "Sum top n items",
+        example: "1 2 3 3 sum => 6",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "prod",
+        aliases: &[],
+        category: "Stack",
+        stack: "(..n n -- product)",
+        desc: "Multiply top n items",
+        example: "2 3 4 3 prod => 24",
+        compile: Simple,
+        varargs: true,
+    },
+    // Arithmetic
+    Word {
+        name: "+",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a b -- a+b)",
+        desc: "Add",
+        example: "2 3 + => 5",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "-",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a b -- a-b)",
+        desc: "Subtract",
+        example: "5 3 - => 2",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "*",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a b -- a*b)",
+        desc: "Multiply",
+        example: "3 4 * => 12",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "/",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a b -- a/b)",
+        desc: "Divide",
+        example: "10 2 / => 5",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "mod",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a b -- a%b)",
+        desc: "Modulo",
+        example: "7 3 mod => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "neg",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a -- -a)",
+        desc: "Negate",
+        example: "5 neg => -5",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "abs",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a -- |a|)",
+        desc: "Absolute value",
+        example: "-5 abs => 5",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "floor",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(f -- n)",
+        desc: "Round down to integer",
+        example: "3.7 floor => 3",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "ceil",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(f -- n)",
+        desc: "Round up to integer",
+        example: "3.2 ceil => 4",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "round",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(f -- n)",
+        desc: "Round to nearest integer",
+        example: "3.5 round => 4",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "min",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a b -- min)",
+        desc: "Minimum of two values",
+        example: "3 5 min => 3",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "max",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a b -- max)",
+        desc: "Maximum of two values",
+        example: "3 5 max => 5",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "pow",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a b -- a^b)",
+        desc: "Exponentiation",
+        example: "2 3 pow => 8",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "sqrt",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a -- √a)",
+        desc: "Square root",
+        example: "16 sqrt => 4",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "sin",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a -- sin(a))",
+        desc: "Sine (radians)",
+        example: "3.14159 2 / sin => 1.0",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "cos",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a -- cos(a))",
+        desc: "Cosine (radians)",
+        example: "0 cos => 1.0",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "log",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(a -- ln(a))",
+        desc: "Natural logarithm",
+        example: "2.718 log => 1.0",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "linmap",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(val inlo inhi outlo outhi -- mapped)",
+        desc: "Linear map from [inlo,inhi] to [outlo,outhi]",
+        example: "64 0 127 200 2000 linmap => 1007.87",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "expmap",
+        aliases: &[],
+        category: "Arithmetic",
+        stack: "(val lo hi -- mapped)",
+        desc: "Exponential map from [0,1] to [lo,hi]",
+        example: "0.5 200 8000 expmap => 1264.91",
+        compile: Simple,
+        varargs: false,
+    },
+    // Comparison
+    Word {
+        name: "=",
+        aliases: &[],
+        category: "Comparison",
+        stack: "(a b -- bool)",
+        desc: "Equal",
+        example: "3 3 = => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "!=",
+        aliases: &["<>"],
+        category: "Comparison",
+        stack: "(a b -- bool)",
+        desc: "Not equal",
+        example: "3 4 != => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "lt",
+        aliases: &[],
+        category: "Comparison",
+        stack: "(a b -- bool)",
+        desc: "Less than",
+        example: "2 3 lt => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "gt",
+        aliases: &[],
+        category: "Comparison",
+        stack: "(a b -- bool)",
+        desc: "Greater than",
+        example: "3 2 gt => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "<=",
+        aliases: &[],
+        category: "Comparison",
+        stack: "(a b -- bool)",
+        desc: "Less or equal",
+        example: "3 3 <= => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: ">=",
+        aliases: &[],
+        category: "Comparison",
+        stack: "(a b -- bool)",
+        desc: "Greater or equal",
+        example: "3 3 >= => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    // Logic
+    Word {
+        name: "and",
+        aliases: &[],
+        category: "Logic",
+        stack: "(a b -- bool)",
+        desc: "Logical and",
+        example: "1 1 and => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "or",
+        aliases: &[],
+        category: "Logic",
+        stack: "(a b -- bool)",
+        desc: "Logical or",
+        example: "0 1 or => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "not",
+        aliases: &[],
+        category: "Logic",
+        stack: "(a -- bool)",
+        desc: "Logical not",
+        example: "0 not => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "xor",
+        aliases: &[],
+        category: "Logic",
+        stack: "(a b -- bool)",
+        desc: "Exclusive or",
+        example: "1 0 xor => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "nand",
+        aliases: &[],
+        category: "Logic",
+        stack: "(a b -- bool)",
+        desc: "Not and",
+        example: "1 1 nand => 0",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "nor",
+        aliases: &[],
+        category: "Logic",
+        stack: "(a b -- bool)",
+        desc: "Not or",
+        example: "0 0 nor => 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "ifelse",
+        aliases: &[],
+        category: "Logic",
+        stack: "(true-quot false-quot bool --)",
+        desc: "Execute true-quot if true, else false-quot",
+        example: "( 1 ) ( 2 ) coin ifelse",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "select",
+        aliases: &[],
+        category: "Logic",
+        stack: "(..quots n --)",
+        desc: "Execute nth quotation (0-indexed)",
+        example: "( 1 ) ( 2 ) ( 3 ) 2 select => 3",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "?",
+        aliases: &[],
+        category: "Logic",
+        stack: "(quot bool --)",
+        desc: "Execute quotation if true",
+        example: "( 2 distort ) 0.5 chance ?",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "!?",
+        aliases: &[],
+        category: "Logic",
+        stack: "(quot bool --)",
+        desc: "Execute quotation if false",
+        example: "( 1 distort ) 0.5 chance !?",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "apply",
+        aliases: &[],
+        category: "Logic",
+        stack: "(quot --)",
+        desc: "Execute quotation unconditionally",
+        example: "( 2 * ) apply",
+        compile: Simple,
+        varargs: false,
+    },
+    // Control
+    Word {
+        name: "times",
+        aliases: &[],
+        category: "Control",
+        stack: "(n quot --)",
+        desc: "Execute quotation n times, @i holds current index",
+        example: "4 ( @i . ) times => 0 1 2 3",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "map",
+        aliases: &[],
+        category: "Control",
+        stack: "(..vals quot -- ..results)",
+        desc: "Apply quotation to each stack element",
+        example: "1 2 3 ( 10 * ) map => 10 20 30",
+        compile: Simple,
+        varargs: false,
+    },
+    // Variables
+    Word {
+        name: "@<var>",
+        aliases: &[],
+        category: "Variables",
+        stack: "( -- val)",
+        desc: "Fetch variable value",
+        example: "@freq => 440",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "!<var>",
+        aliases: &[],
+        category: "Variables",
+        stack: "(val --)",
+        desc: "Store value in variable",
+        example: "440 !freq",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: ",<var>",
+        aliases: &[],
+        category: "Variables",
+        stack: "(val -- val)",
+        desc: "Store value in variable, keep on stack",
+        example: "440 ,freq => 440",
+        compile: Simple,
+        varargs: false,
+    },
+    // Definitions
+    Word {
+        name: ":",
+        aliases: &[],
+        category: "Definitions",
+        stack: "( -- )",
+        desc: "Begin word definition",
+        example: ": kick \"kick\" s emit ;",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: ";",
+        aliases: &[],
+        category: "Definitions",
+        stack: "( -- )",
+        desc: "End word definition",
+        example: ": kick \"kick\" s emit ;",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "forget",
+        aliases: &[],
+        category: "Definitions",
+        stack: "(name --)",
+        desc: "Remove user-defined word from dictionary",
+        example: "\"double\" forget",
+        compile: Simple,
+        varargs: false,
+    },
+];

crates/forth/src/words/effects.rs

@@ -0,0 +1,853 @@
+//! Word metadata for audio effect parameters (filter, envelope, reverb, delay, lo-fi, stereo, mod FX).
+
+use super::{Word, WordCompile::*};
+pub(super) const WORDS: &[Word] = &[
+    // Envelope
+    Word {
+        name: "gain",
+        aliases: &[],
+        category: "Envelope",
+        stack: "(v.. --)",
+        desc: "Set volume (0-1)",
+        example: "0.8 gain",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "postgain",
+        aliases: &[],
+        category: "Envelope",
+        stack: "(v.. --)",
+        desc: "Set post gain",
+        example: "1.2 postgain",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "velocity",
+        aliases: &[],
+        category: "Envelope",
+        stack: "(v.. --)",
+        desc: "Set velocity (0-1)",
+        example: "0.8 velocity",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "attack",
+        aliases: &["att", "a"],
+        category: "Envelope",
+        stack: "(v.. --)",
+        desc: "Set attack time",
+        example: "0.01 attack",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "decay",
+        aliases: &["dec", "d"],
+        category: "Envelope",
+        stack: "(v.. --)",
+        desc: "Set decay time",
+        example: "0.1 decay",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "sustain",
+        aliases: &["sus", "s"],
+        category: "Envelope",
+        stack: "(v.. --)",
+        desc: "Set sustain level",
+        example: "0.5 sustain",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "release",
+        aliases: &["rel", "r"],
+        category: "Envelope",
+        stack: "(v.. --)",
+        desc: "Set release time",
+        example: "0.3 release",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "envdelay",
+        aliases: &["envdly"],
+        category: "Envelope",
+        stack: "(v.. --)",
+        desc: "Set envelope delay time",
+        example: "0.1 envdelay",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "hold",
+        aliases: &["hld"],
+        category: "Envelope",
+        stack: "(v.. --)",
+        desc: "Set envelope hold time",
+        example: "0.05 hold",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "adsr",
+        aliases: &[],
+        category: "Envelope",
+        stack: "(a d s r --)",
+        desc: "Set attack, decay, sustain, release",
+        example: "0.01 0.1 0.5 0.3 adsr",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "ad",
+        aliases: &[],
+        category: "Envelope",
+        stack: "(a d --)",
+        desc: "Set attack, decay (sustain=0)",
+        example: "0.01 0.1 ad",
+        compile: Simple,
+        varargs: false,
+    },
+    // Filter
+    Word {
+        name: "lpf",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set lowpass frequency",
+        example: "2000 lpf",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "lpq",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set lowpass resonance",
+        example: "0.5 lpq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "hpf",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set highpass frequency",
+        example: "100 hpf",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "hpq",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set highpass resonance",
+        example: "0.5 hpq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "bpf",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set bandpass frequency",
+        example: "1000 bpf",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "bpq",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set bandpass resonance",
+        example: "0.5 bpq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "llpf",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set ladder lowpass frequency",
+        example: "2000 llpf",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "llpq",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set ladder lowpass resonance",
+        example: "0.5 llpq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "lhpf",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set ladder highpass frequency",
+        example: "100 lhpf",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "lhpq",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set ladder highpass resonance",
+        example: "0.5 lhpq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "lbpf",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set ladder bandpass frequency",
+        example: "1000 lbpf",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "lbpq",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set ladder bandpass resonance",
+        example: "0.5 lbpq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "ftype",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set filter type",
+        example: "1 ftype",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "eqlo",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set low shelf gain (dB)",
+        example: "3 eqlo",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "eqmid",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set mid peak gain (dB)",
+        example: "-2 eqmid",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "eqhi",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set high shelf gain (dB)",
+        example: "1 eqhi",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "eqlofreq",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set low shelf frequency (Hz)",
+        example: "400 eqlofreq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "eqmidfreq",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set mid peak frequency (Hz)",
+        example: "2000 eqmidfreq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "eqhifreq",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set high shelf frequency (Hz)",
+        example: "8000 eqhifreq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "tilt",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set tilt EQ (-1 dark, 1 bright)",
+        example: "-0.5 tilt",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "comb",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set comb filter mix",
+        example: "0.5 comb",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "combfreq",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set comb frequency",
+        example: "200 combfreq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "combfeedback",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set comb feedback",
+        example: "0.5 combfeedback",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "combdamp",
+        aliases: &[],
+        category: "Filter",
+        stack: "(v.. --)",
+        desc: "Set comb damping",
+        example: "0.5 combdamp",
+        compile: Param,
+        varargs: true,
+    },
+    // Reverb
+    Word {
+        name: "verb",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb mix",
+        example: "0.3 verb",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verbdecay",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb decay (0-1)",
+        example: "0.75 verbdecay",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verbdamp",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb damping",
+        example: "0.5 verbdamp",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verbpredelay",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb predelay (0-1)",
+        example: "0.1 verbpredelay",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verbdiff",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb diffusion",
+        example: "0.7 verbdiff",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verbtype",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb algorithm (vital or dattorro)",
+        example: "vital verbtype",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verbchorus",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb chorus amount (0-1)",
+        example: "0.3 verbchorus",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verbchorusfreq",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb chorus frequency (0-1)",
+        example: "0.2 verbchorusfreq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verbprelow",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb pre-low filter (0-1)",
+        example: "0.2 verbprelow",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verbprehigh",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb pre-high filter (0-1)",
+        example: "0.8 verbprehigh",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verblowcut",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb low cut frequency (0-1)",
+        example: "0.5 verblowcut",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verbhighcut",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb high cut frequency (0-1)",
+        example: "0.7 verbhighcut",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "verblowgain",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set reverb low gain (0-1)",
+        example: "0.4 verblowgain",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "size",
+        aliases: &[],
+        category: "Reverb",
+        stack: "(v.. --)",
+        desc: "Set size",
+        example: "1 size",
+        compile: Param,
+        varargs: true,
+    },
+    // Delay
+    Word {
+        name: "delay",
+        aliases: &[],
+        category: "Delay",
+        stack: "(v.. --)",
+        desc: "Set delay mix",
+        example: "0.3 delay",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "delaytime",
+        aliases: &[],
+        category: "Delay",
+        stack: "(v.. --)",
+        desc: "Set delay time",
+        example: "0.25 delaytime",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "delayfeedback",
+        aliases: &[],
+        category: "Delay",
+        stack: "(v.. --)",
+        desc: "Set delay feedback",
+        example: "0.5 delayfeedback",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "delaytype",
+        aliases: &[],
+        category: "Delay",
+        stack: "(v.. --)",
+        desc: "Set delay type",
+        example: "1 delaytype",
+        compile: Param,
+        varargs: true,
+    },
+    // Lo-fi
+    Word {
+        name: "crush",
+        aliases: &[],
+        category: "Lo-fi",
+        stack: "(v.. --)",
+        desc: "Set bit crush",
+        example: "8 crush",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fold",
+        aliases: &[],
+        category: "Lo-fi",
+        stack: "(v.. --)",
+        desc: "Set wave fold",
+        example: "2 fold",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "wrap",
+        aliases: &[],
+        category: "Lo-fi",
+        stack: "(v.. --)",
+        desc: "Set wave wrap",
+        example: "0.5 wrap",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "distort",
+        aliases: &[],
+        category: "Lo-fi",
+        stack: "(v.. --)",
+        desc: "Set distortion",
+        example: "0.5 distort",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "distortvol",
+        aliases: &[],
+        category: "Lo-fi",
+        stack: "(v.. --)",
+        desc: "Set distortion volume",
+        example: "0.8 distortvol",
+        compile: Param,
+        varargs: true,
+    },
+    // Stereo
+    Word {
+        name: "pan",
+        aliases: &[],
+        category: "Stereo",
+        stack: "(v.. --)",
+        desc: "Set pan (-1 to 1)",
+        example: "0.5 pan",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "width",
+        aliases: &[],
+        category: "Stereo",
+        stack: "(v.. --)",
+        desc: "Set stereo width (0 mono, 1 normal, 2 wide)",
+        example: "0 width",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "haas",
+        aliases: &[],
+        category: "Stereo",
+        stack: "(v.. --)",
+        desc: "Set Haas delay in ms (spatial placement)",
+        example: "8 haas",
+        compile: Param,
+        varargs: true,
+    },
+    // Mod FX
+    Word {
+        name: "phaser",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set phaser rate",
+        example: "1 phaser",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "phaserdepth",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set phaser depth",
+        example: "0.5 phaserdepth",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "phasersweep",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set phaser sweep",
+        example: "0.5 phasersweep",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "phasercenter",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set phaser center",
+        example: "1000 phasercenter",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "flanger",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set flanger rate",
+        example: "0.5 flanger",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "flangerdepth",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set flanger depth",
+        example: "0.5 flangerdepth",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "flangerfeedback",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set flanger feedback",
+        example: "0.5 flangerfeedback",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "smear",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set smear allpass chain wet/dry mix (0=bypass, 1=full wet)",
+        example: "0.5 smear",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "smearfreq",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set smear allpass break frequency in Hz",
+        example: "800 smearfreq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "smearfb",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set smear feedback for resonance (0-0.95)",
+        example: "0.8 smearfb",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "chorus",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set chorus rate",
+        example: "1 chorus",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "chorusdepth",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set chorus depth",
+        example: "0.5 chorusdepth",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "chorusdelay",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set chorus delay",
+        example: "0.02 chorusdelay",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "feedback",
+        aliases: &["fb"],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set feedback delay level",
+        example: "0.7 feedback",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fbtime",
+        aliases: &["fbt"],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set feedback delay time in ms",
+        example: "30 fbtime",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fbdamp",
+        aliases: &["fbd"],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set feedback delay damping",
+        example: "0.3 fbdamp",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fblfo",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set feedback delay LFO rate in Hz",
+        example: "2 fblfo",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fblfodepth",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set feedback delay LFO depth",
+        example: "0.5 fblfodepth",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fblfoshape",
+        aliases: &[],
+        category: "Mod FX",
+        stack: "(v.. --)",
+        desc: "Set feedback delay LFO shape",
+        example: "tri fblfoshape",
+        compile: Param,
+        varargs: true,
+    },
+    // Compressor
+    Word {
+        name: "comp",
+        aliases: &[],
+        category: "Compressor",
+        stack: "(v.. --)",
+        desc: "Set sidechain duck amount (0-1)",
+        example: "0.8 comp",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "compattack",
+        aliases: &["cattack"],
+        category: "Compressor",
+        stack: "(v.. --)",
+        desc: "Set compressor attack time in seconds",
+        example: "0.01 compattack",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "comprelease",
+        aliases: &["crelease"],
+        category: "Compressor",
+        stack: "(v.. --)",
+        desc: "Set compressor release time in seconds",
+        example: "0.15 comprelease",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "comporbit",
+        aliases: &["corbit"],
+        category: "Compressor",
+        stack: "(v.. --)",
+        desc: "Set sidechain source orbit",
+        example: "0 comporbit",
+        compile: Param,
+        varargs: true,
+    },
+];

crates/forth/src/words/midi.rs

@@ -0,0 +1,136 @@
+//! MIDI word definitions: channel, CC, pitch bend, transport, and device routing.
+
+use super::{Word, WordCompile::*};
+
+pub(super) const WORDS: &[Word] = &[
+    Word {
+        name: "chan",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(v.. --)",
+        desc: "Set MIDI channel 1-16",
+        example: "1 chan",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "ccnum",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(v.. --)",
+        desc: "Set MIDI CC number 0-127",
+        example: "1 ccnum",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "ccout",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(v.. --)",
+        desc: "Set MIDI CC output value 0-127",
+        example: "64 ccout",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "bend",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(v.. --)",
+        desc: "Set pitch bend -1.0 to 1.0 (0 = center)",
+        example: "0.5 bend",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "pressure",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(v.. --)",
+        desc: "Set channel pressure (aftertouch) 0-127",
+        example: "64 pressure",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "program",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(v.. --)",
+        desc: "Set program change number 0-127",
+        example: "0 program",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "m.",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(--)",
+        desc: "Emit MIDI message from params (note/cc/bend/pressure/program)",
+        example: "60 note 100 velocity 1 chan m.",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "mclock",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(--)",
+        desc: "Send MIDI clock pulse (24 per quarter note)",
+        example: "mclock",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "mstart",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(--)",
+        desc: "Send MIDI start message",
+        example: "mstart",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "mstop",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(--)",
+        desc: "Send MIDI stop message",
+        example: "mstop",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "mcont",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(--)",
+        desc: "Send MIDI continue message",
+        example: "mcont",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "ccval",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(cc chan -- val)",
+        desc: "Read CC value 0-127 from MIDI input (uses dev param for device)",
+        example: "1 1 ccval",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "dev",
+        aliases: &[],
+        category: "MIDI",
+        stack: "(v.. --)",
+        desc: "Set MIDI device slot 0-3 for output/input",
+        example: "1 dev 60 note m.",
+        compile: Param,
+        varargs: true,
+    },
+];

crates/forth/src/words/mod.rs

@@ -0,0 +1,65 @@
+//! Built-in word definitions and lookup for the Forth VM.
+
+mod compile;
+mod core;
+mod effects;
+mod midi;
+mod music;
+mod sequencing;
+mod sound;
+
+use std::collections::HashMap;
+use std::sync::LazyLock;
+
+pub(crate) use compile::compile_word;
+
+/// How a word is compiled into ops.
+#[derive(Clone, Copy)]
+pub enum WordCompile {
+    Simple,
+    Context(&'static str),
+    Param,
+    Probability(f64),
+}
+
+/// Metadata for a built-in Forth word.
+#[derive(Clone, Copy)]
+pub struct Word {
+    pub name: &'static str,
+    pub aliases: &'static [&'static str],
+    pub category: &'static str,
+    pub stack: &'static str,
+    pub desc: &'static str,
+    pub example: &'static str,
+    pub compile: WordCompile,
+    pub varargs: bool,
+}
+
+/// All built-in words, aggregated from every category module.
+pub static WORDS: LazyLock<Vec<Word>> = LazyLock::new(|| {
+    let mut words = Vec::new();
+    words.extend_from_slice(self::core::WORDS);
+    words.extend_from_slice(sound::WORDS);
+    words.extend_from_slice(effects::WORDS);
+    words.extend_from_slice(sequencing::WORDS);
+    words.extend_from_slice(music::WORDS);
+    words.extend_from_slice(midi::WORDS);
+    words
+});
+
+/// Index mapping word names and aliases to their definitions.
+static WORD_MAP: LazyLock<HashMap<&'static str, &'static Word>> = LazyLock::new(|| {
+    let mut map = HashMap::with_capacity(WORDS.len() * 2);
+    for word in WORDS.iter() {
+        map.insert(word.name, word);
+        for alias in word.aliases {
+            map.insert(alias, word);
+        }
+    }
+    map
+});
+
+/// Find a word by name or alias.
+pub fn lookup_word(name: &str) -> Option<&'static Word> {
+    WORD_MAP.get(name).copied()
+}

crates/forth/src/words/music.rs

@@ -0,0 +1,496 @@
+//! Word definitions for music theory, harmony, and chord construction.
+
+use super::{Word, WordCompile::*};
+
+pub(super) const WORDS: &[Word] = &[
+    // Music
+    Word {
+        name: "mtof",
+        aliases: &[],
+        category: "Music",
+        stack: "(midi -- hz)",
+        desc: "MIDI note to frequency",
+        example: "69 mtof => 440.0",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "ftom",
+        aliases: &[],
+        category: "Music",
+        stack: "(hz -- midi)",
+        desc: "Frequency to MIDI note",
+        example: "440 ftom => 69.0",
+        compile: Simple,
+        varargs: false,
+    },
+    // Harmony
+    Word {
+        name: "key!",
+        aliases: &[],
+        category: "Harmony",
+        stack: "(root --)",
+        desc: "Set tonal center for scale operations",
+        example: "g3 key! 0 major => 55",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "triad",
+        aliases: &[],
+        category: "Harmony",
+        stack: "(degree -- n1 n2 n3)",
+        desc: "Diatonic triad from scale degree (follows a scale word)",
+        example: "0 major triad => 60 64 67",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "seventh",
+        aliases: &[],
+        category: "Harmony",
+        stack: "(degree -- n1 n2 n3 n4)",
+        desc: "Diatonic seventh from scale degree (follows a scale word)",
+        example: "0 major seventh => 60 64 67 71",
+        compile: Simple,
+        varargs: true,
+    },
+    // Chord voicings
+    Word {
+        name: "inv",
+        aliases: &[],
+        category: "Chord",
+        stack: "(a b c.. -- b c.. a+12)",
+        desc: "Inversion: bottom note moves up an octave",
+        example: "c4 maj inv => 64 67 72",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "dinv",
+        aliases: &[],
+        category: "Chord",
+        stack: "(a b.. z -- z-12 a b..)",
+        desc: "Down inversion: top note moves down an octave",
+        example: "c4 maj dinv => 55 60 64",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "drop2",
+        aliases: &[],
+        category: "Chord",
+        stack: "(a b c d -- b-12 a c d)",
+        desc: "Drop-2 voicing: 2nd from top moves down an octave",
+        example: "c4 maj7 drop2 => 55 60 64 71",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "drop3",
+        aliases: &[],
+        category: "Chord",
+        stack: "(a b c d -- c-12 a b d)",
+        desc: "Drop-3 voicing: 3rd from top moves down an octave",
+        example: "c4 maj7 drop3 => 52 60 67 71",
+        compile: Simple,
+        varargs: true,
+    },
+    // Transpose
+    Word {
+        name: "tp",
+        aliases: &[],
+        category: "Harmony",
+        stack: "(n --)",
+        desc: "Transpose all ints on stack by N semitones",
+        example: "c4 maj 3 tp => 63 67 70",
+        compile: Simple,
+        varargs: true,
+    },
+    // Chords - Triads
+    Word {
+        name: "pwr",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root fifth)",
+        desc: "Power chord",
+        example: "c4 pwr => 60 67",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "maj",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth)",
+        desc: "Major triad",
+        example: "c4 maj => 60 64 67",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "m",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth)",
+        desc: "Minor triad",
+        example: "c4 m => 60 63 67",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "dim",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth)",
+        desc: "Diminished triad",
+        example: "c4 dim => 60 63 66",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "aug",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth)",
+        desc: "Augmented triad",
+        example: "c4 aug => 60 64 68",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "sus2",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root second fifth)",
+        desc: "Suspended 2nd",
+        example: "c4 sus2 => 60 62 67",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "sus4",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root fourth fifth)",
+        desc: "Suspended 4th",
+        example: "c4 sus4 => 60 65 67",
+        compile: Simple,
+        varargs: true,
+    },
+    // Chords - Seventh
+    Word {
+        name: "maj7",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh)",
+        desc: "Major 7th",
+        example: "c4 maj7 => 60 64 67 71",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "min7",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh)",
+        desc: "Minor 7th",
+        example: "c4 min7 => 60 63 67 70",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "dom7",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh)",
+        desc: "Dominant 7th",
+        example: "c4 dom7 => 60 64 67 70",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "dim7",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh)",
+        desc: "Diminished 7th",
+        example: "c4 dim7 => 60 63 66 69",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "m7b5",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh)",
+        desc: "Half-diminished (min7b5)",
+        example: "c4 m7b5 => 60 63 66 70",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "minmaj7",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh)",
+        desc: "Minor-major 7th",
+        example: "c4 minmaj7 => 60 63 67 71",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "aug7",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh)",
+        desc: "Augmented 7th",
+        example: "c4 aug7 => 60 64 68 70",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "augmaj7",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh)",
+        desc: "Augmented major 7th",
+        example: "c4 augmaj7 => 60 64 68 71",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "7sus4",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root fourth fifth seventh)",
+        desc: "Dominant 7 sus4",
+        example: "c4 7sus4 => 60 65 67 70",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "9sus4",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root fourth fifth seventh ninth)",
+        desc: "9 sus4",
+        example: "c4 9sus4 => 60 65 67 70 74",
+        compile: Simple,
+        varargs: true,
+    },
+    // Chords - Sixth
+    Word {
+        name: "maj6",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth sixth)",
+        desc: "Major 6th",
+        example: "c4 maj6 => 60 64 67 69",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "min6",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth sixth)",
+        desc: "Minor 6th",
+        example: "c4 min6 => 60 63 67 69",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "maj69",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth sixth ninth)",
+        desc: "Major 6/9",
+        example: "c4 maj69 => 60 64 67 69 74",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "min69",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth sixth ninth)",
+        desc: "Minor 6/9",
+        example: "c4 min69 => 60 63 67 69 74",
+        compile: Simple,
+        varargs: true,
+    },
+    // Chords - Extended
+    Word {
+        name: "dom9",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh ninth)",
+        desc: "Dominant 9th",
+        example: "c4 dom9 => 60 64 67 70 74",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "maj9",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh ninth)",
+        desc: "Major 9th",
+        example: "c4 maj9 => 60 64 67 71 74",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "min9",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh ninth)",
+        desc: "Minor 9th",
+        example: "c4 min9 => 60 63 67 70 74",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "dom11",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh ninth eleventh)",
+        desc: "Dominant 11th",
+        example: "c4 dom11 => 60 64 67 70 74 77",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "maj11",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh ninth eleventh)",
+        desc: "Major 11th",
+        example: "c4 maj11 => 60 64 67 71 74 77",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "min11",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh ninth eleventh)",
+        desc: "Minor 11th",
+        example: "c4 min11 => 60 63 67 70 74 77",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "dom13",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh ninth thirteenth)",
+        desc: "Dominant 13th",
+        example: "c4 dom13 => 60 64 67 70 74 81",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "maj13",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh ninth thirteenth)",
+        desc: "Major 13th",
+        example: "c4 maj13 => 60 64 67 71 74 81",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "min13",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh ninth thirteenth)",
+        desc: "Minor 13th",
+        example: "c4 min13 => 60 63 67 70 74 81",
+        compile: Simple,
+        varargs: true,
+    },
+    // Chords - Add
+    Word {
+        name: "add9",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth ninth)",
+        desc: "Major add 9",
+        example: "c4 add9 => 60 64 67 74",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "add11",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth eleventh)",
+        desc: "Major add 11",
+        example: "c4 add11 => 60 64 67 77",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "madd9",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth ninth)",
+        desc: "Minor add 9",
+        example: "c4 madd9 => 60 63 67 74",
+        compile: Simple,
+        varargs: true,
+    },
+    // Chords - Altered dominants
+    Word {
+        name: "dom7b9",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh flatninth)",
+        desc: "7th flat 9",
+        example: "c4 dom7b9 => 60 64 67 70 73",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "dom7s9",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh sharpninth)",
+        desc: "7th sharp 9 (Hendrix chord)",
+        example: "c4 dom7s9 => 60 64 67 70 75",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "dom7b5",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third flatfifth seventh)",
+        desc: "7th flat 5",
+        example: "c4 dom7b5 => 60 64 66 70",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "dom7s5",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third sharpfifth seventh)",
+        desc: "7th sharp 5",
+        example: "c4 dom7s5 => 60 64 68 70",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "dom7s11",
+        aliases: &[],
+        category: "Chord",
+        stack: "(root -- root third fifth seventh sharpelev)",
+        desc: "7th sharp 11 (lydian dominant)",
+        example: "c4 dom7s11 => 60 64 67 70 78",
+        compile: Simple,
+        varargs: true,
+    },
+];

crates/forth/src/words/sequencing.rs

@@ -0,0 +1,524 @@
+//! Word metadata for sequencing: probability, timing, context queries, generators.
+
+use super::{Word, WordCompile::*};
+
+pub(super) const WORDS: &[Word] = &[
+    // Probability
+    Word {
+        name: "rand",
+        aliases: &[],
+        category: "Probability",
+        stack: "(min max -- n|f)",
+        desc: "Random in range. Int if both args are int, float otherwise",
+        example: "1 6 rand => 4 | 0.0 1.0 rand => 0.42",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "exprand",
+        aliases: &[],
+        category: "Probability",
+        stack: "(lo hi -- f)",
+        desc: "Exponential random biased toward lo. Both args must be positive",
+        example: "1.0 100.0 exprand => 3.7",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "logrand",
+        aliases: &[],
+        category: "Probability",
+        stack: "(lo hi -- f)",
+        desc: "Exponential random biased toward hi. Both args must be positive",
+        example: "1.0 100.0 logrand => 87.2",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "seed",
+        aliases: &[],
+        category: "Probability",
+        stack: "(n --)",
+        desc: "Set random seed",
+        example: "12345 seed",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "coin",
+        aliases: &[],
+        category: "Probability",
+        stack: "(-- bool)",
+        desc: "50/50 random boolean",
+        example: "coin => 0 or 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "chance",
+        aliases: &[],
+        category: "Probability",
+        stack: "(quot prob --)",
+        desc: "Execute quotation with probability (0.0-1.0)",
+        example: "( 2 distort ) 0.75 chance",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "prob",
+        aliases: &[],
+        category: "Probability",
+        stack: "(quot pct --)",
+        desc: "Execute quotation with probability (0-100)",
+        example: "( 2 distort ) 75 prob",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "choose",
+        aliases: &[],
+        category: "Probability",
+        stack: "(..n n -- val)",
+        desc: "Random pick from n items",
+        example: "1 2 3 3 choose",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "cycle",
+        aliases: &[],
+        category: "Probability",
+        stack: "(v1..vn n -- selected)",
+        desc: "Cycle through n items by step runs",
+        example: "60 64 67 3 cycle",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "pcycle",
+        aliases: &[],
+        category: "Probability",
+        stack: "(v1..vn n -- selected)",
+        desc: "Cycle through n items by pattern iteration",
+        example: "60 64 67 3 pcycle",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "bounce",
+        aliases: &[],
+        category: "Probability",
+        stack: "(v1..vn n -- selected)",
+        desc: "Ping-pong cycle through n items by step runs",
+        example: "60 64 67 72 4 bounce",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "pbounce",
+        aliases: &[],
+        category: "Probability",
+        stack: "(v1..vn n -- selected)",
+        desc: "Ping-pong cycle through n items by pattern iteration",
+        example: "60 64 67 72 4 pbounce",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "index",
+        aliases: &[],
+        category: "Probability",
+        stack: "(v1..vn n idx -- selected)",
+        desc: "Select item at explicit index",
+        example: "[ c4 e4 g4 ] step index",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "wchoose",
+        aliases: &[],
+        category: "Probability",
+        stack: "(v1 w1 v2 w2 ... n -- selected)",
+        desc: "Weighted random pick from n value/weight pairs",
+        example: "60 0.6  64 0.3  67 0.1  3 wchoose",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "always",
+        aliases: &[],
+        category: "Probability",
+        stack: "(quot --)",
+        desc: "Always execute quotation",
+        example: "( 2 distort ) always",
+        compile: Probability(1.0),
+        varargs: false,
+    },
+    Word {
+        name: "never",
+        aliases: &[],
+        category: "Probability",
+        stack: "(quot --)",
+        desc: "Never execute quotation",
+        example: "( 2 distort ) never",
+        compile: Probability(0.0),
+        varargs: false,
+    },
+    Word {
+        name: "often",
+        aliases: &[],
+        category: "Probability",
+        stack: "(quot --)",
+        desc: "Execute quotation 75% of the time",
+        example: "( 2 distort ) often",
+        compile: Probability(0.75),
+        varargs: false,
+    },
+    Word {
+        name: "sometimes",
+        aliases: &[],
+        category: "Probability",
+        stack: "(quot --)",
+        desc: "Execute quotation 50% of the time",
+        example: "( 2 distort ) sometimes",
+        compile: Probability(0.5),
+        varargs: false,
+    },
+    Word {
+        name: "rarely",
+        aliases: &[],
+        category: "Probability",
+        stack: "(quot --)",
+        desc: "Execute quotation 25% of the time",
+        example: "( 2 distort ) rarely",
+        compile: Probability(0.25),
+        varargs: false,
+    },
+    Word {
+        name: "almostNever",
+        aliases: &[],
+        category: "Probability",
+        stack: "(quot --)",
+        desc: "Execute quotation 10% of the time",
+        example: "( 2 distort ) almostNever",
+        compile: Probability(0.1),
+        varargs: false,
+    },
+    Word {
+        name: "almostAlways",
+        aliases: &[],
+        category: "Probability",
+        stack: "(quot --)",
+        desc: "Execute quotation 90% of the time",
+        example: "( 2 distort ) almostAlways",
+        compile: Probability(0.9),
+        varargs: false,
+    },
+    // Time
+    Word {
+        name: "every",
+        aliases: &[],
+        category: "Time",
+        stack: "(quot n --)",
+        desc: "Execute quotation every nth iteration",
+        example: "( 2 distort ) 4 every",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "except",
+        aliases: &[],
+        category: "Time",
+        stack: "(quot n --)",
+        desc: "Execute quotation on all iterations except every nth",
+        example: "( 2 distort ) 4 except",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "every+",
+        aliases: &[],
+        category: "Time",
+        stack: "(quot n offset --)",
+        desc: "Execute quotation every nth iteration with phase offset",
+        example: "( snare ) 4 2 every+ => fires at iter 2, 6, 10...",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "except+",
+        aliases: &[],
+        category: "Time",
+        stack: "(quot n offset --)",
+        desc: "Skip quotation every nth iteration with phase offset",
+        example: "( snare ) 4 2 except+ => skips at iter 2, 6, 10...",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "bjork",
+        aliases: &[],
+        category: "Time",
+        stack: "(quot k n --)",
+        desc: "Execute quotation using Euclidean distribution over step runs",
+        example: "( 2 distort ) 3 8 bjork",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "pbjork",
+        aliases: &[],
+        category: "Time",
+        stack: "(quot k n --)",
+        desc: "Execute quotation using Euclidean distribution over pattern iterations",
+        example: "( 2 distort ) 3 8 pbjork",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "loop",
+        aliases: &[],
+        category: "Time",
+        stack: "(n --)",
+        desc: "Fit sample to n steps",
+        example: "\"break\" s 16 loop @",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "tempo!",
+        aliases: &[],
+        category: "Time",
+        stack: "(bpm --)",
+        desc: "Set global tempo",
+        example: "140 tempo!",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "speed!",
+        aliases: &[],
+        category: "Time",
+        stack: "(multiplier --)",
+        desc: "Set pattern speed multiplier",
+        example: "2.0 speed!",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "at",
+        aliases: &[],
+        category: "Time",
+        stack: "(v1..vn -- )",
+        desc: "Looping block: re-executes body per delta. Close with . (audio), m. (MIDI), or done (no emit)",
+        example: "0 0.5 at kick snd 1 2 rand freq . | 0 0.5 at 60 note m. | 0 0.5 at !x done",
+        compile: Simple,
+        varargs: true,
+    },
+    // Context
+    Word {
+        name: "step",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- n)",
+        desc: "Current step index",
+        example: "step => 0",
+        compile: Context("step"),
+        varargs: false,
+    },
+    Word {
+        name: "beat",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- f)",
+        desc: "Current beat position",
+        example: "beat => 4.5",
+        compile: Context("beat"),
+        varargs: false,
+    },
+    Word {
+        name: "pattern",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- n)",
+        desc: "Current pattern index",
+        example: "pattern => 0",
+        compile: Context("pattern"),
+        varargs: false,
+    },
+    Word {
+        name: "pbank",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- n)",
+        desc: "Current pattern's bank index",
+        example: "pbank => 0",
+        compile: Context("bank"),
+        varargs: false,
+    },
+    Word {
+        name: "tempo",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- f)",
+        desc: "Current BPM",
+        example: "tempo => 120.0",
+        compile: Context("tempo"),
+        varargs: false,
+    },
+    Word {
+        name: "phase",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- f)",
+        desc: "Phase in bar (0-1)",
+        example: "phase => 0.25",
+        compile: Context("phase"),
+        varargs: false,
+    },
+    Word {
+        name: "slot",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- n)",
+        desc: "Current slot number",
+        example: "slot => 0",
+        compile: Context("slot"),
+        varargs: false,
+    },
+    Word {
+        name: "runs",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- n)",
+        desc: "Times this step ran",
+        example: "runs => 3",
+        compile: Context("runs"),
+        varargs: false,
+    },
+    Word {
+        name: "iter",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- n)",
+        desc: "Pattern iteration count",
+        example: "iter => 2",
+        compile: Context("iter"),
+        varargs: false,
+    },
+    Word {
+        name: "stepdur",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- f)",
+        desc: "Step duration in seconds",
+        example: "stepdur => 0.125",
+        compile: Context("stepdur"),
+        varargs: false,
+    },
+    Word {
+        name: "fill",
+        aliases: &[],
+        category: "Context",
+        stack: "(-- bool)",
+        desc: "True when fill is on (f key)",
+        example: "\"snare\" s . fill ?",
+        compile: Context("fill"),
+        varargs: false,
+    },
+    // Desktop
+    #[cfg(feature = "desktop")]
+    Word {
+        name: "mx",
+        aliases: &[],
+        category: "Desktop",
+        stack: "(-- x)",
+        desc: "Normalized mouse X position (0-1)",
+        example: "mx 440 880 range freq",
+        compile: Context("mx"),
+        varargs: false,
+    },
+    #[cfg(feature = "desktop")]
+    Word {
+        name: "my",
+        aliases: &[],
+        category: "Desktop",
+        stack: "(-- y)",
+        desc: "Normalized mouse Y position (0-1)",
+        example: "my 0.1 0.9 range gain",
+        compile: Context("my"),
+        varargs: false,
+    },
+    #[cfg(feature = "desktop")]
+    Word {
+        name: "mdown",
+        aliases: &[],
+        category: "Desktop",
+        stack: "(-- bool)",
+        desc: "1 when mouse button held, 0 otherwise",
+        example: "mdown ( \"crash\" s . ) ?",
+        compile: Context("mdown"),
+        varargs: false,
+    },
+    // Generator
+    Word {
+        name: "..",
+        aliases: &[],
+        category: "Generator",
+        stack: "(start end -- start start+1 ... end)",
+        desc: "Push arithmetic sequence from start to end",
+        example: "1 4 .. => 1 2 3 4",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: ".,",
+        aliases: &[],
+        category: "Generator",
+        stack: "(start end step -- start start+step ...)",
+        desc: "Push arithmetic sequence with custom step",
+        example: "0 1 0.25 ., => 0 0.25 0.5 0.75 1",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "gen",
+        aliases: &[],
+        category: "Generator",
+        stack: "(quot n -- results...)",
+        desc: "Execute quotation n times, push all results",
+        example: "( 1 6 rand ) 4 gen => 4 random values",
+        compile: Simple,
+        varargs: true,
+    },
+    Word {
+        name: "geom..",
+        aliases: &[],
+        category: "Generator",
+        stack: "(start ratio count -- start start*r start*r^2 ...)",
+        desc: "Push geometric sequence",
+        example: "1 2 4 geom.. => 1 2 4 8",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "euclid",
+        aliases: &[],
+        category: "Generator",
+        stack: "(k n -- i1 i2 ... ik)",
+        desc: "Push indices for k hits evenly distributed over n steps",
+        example: "4 8 euclid => 0 2 4 6",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "euclidrot",
+        aliases: &[],
+        category: "Generator",
+        stack: "(k n r -- i1 i2 ... ik)",
+        desc: "Push Euclidean indices with rotation r",
+        example: "3 8 2 euclidrot => 1 4 6",
+        compile: Simple,
+        varargs: false,
+    },
+];

crates/forth/src/words/sound.rs

@@ -0,0 +1,865 @@
+//! Word metadata for sound commands, sample/oscillator params, FM, modulation, and LFO.
+
+use super::{Word, WordCompile::*};
+
+pub(super) const WORDS: &[Word] = &[
+    // Sound
+    Word {
+        name: "sound",
+        aliases: &["snd"],
+        category: "Sound",
+        stack: "(name --)",
+        desc: "Begin sound command",
+        example: "\"kick\" sound",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: ".",
+        aliases: &[],
+        category: "Sound",
+        stack: "(--)",
+        desc: "Emit current sound",
+        example: "\"kick\" s . . . .",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "clear",
+        aliases: &[],
+        category: "Sound",
+        stack: "(--)",
+        desc: "Clear sound register (sound and all params)",
+        example: "\"kick\" s 0.5 gain . clear \"hat\" s .",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "all",
+        aliases: &[],
+        category: "Sound",
+        stack: "(--)",
+        desc: "Apply current params to all sounds",
+        example: "500 lpf 0.5 verb all",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "noall",
+        aliases: &[],
+        category: "Sound",
+        stack: "(--)",
+        desc: "Clear global params",
+        example: "noall",
+        compile: Simple,
+        varargs: false,
+    },
+    // Recording
+    Word {
+        name: "rec",
+        aliases: &[],
+        category: "Sound",
+        stack: "(name --)",
+        desc: "Toggle recording audio output to named sample",
+        example: "\"loop1\" rec",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "overdub",
+        aliases: &["dub"],
+        category: "Sound",
+        stack: "(name --)",
+        desc: "Toggle overdub recording onto existing named sample",
+        example: "\"loop1\" overdub",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "orec",
+        aliases: &[],
+        category: "Sound",
+        stack: "(name orbit --)",
+        desc: "Toggle recording a single orbit into named sample",
+        example: "\"drums\" 0 orec",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "odub",
+        aliases: &[],
+        category: "Sound",
+        stack: "(name orbit --)",
+        desc: "Toggle overdub recording a single orbit onto named sample",
+        example: "\"drums\" 0 odub",
+        compile: Simple,
+        varargs: false,
+    },
+    // Sample
+    Word {
+        name: "bank",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set sample bank suffix",
+        example: "\"a\" bank",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "time",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set time offset",
+        example: "0.1 time",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "dur",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set MIDI note duration (for audio, use gate)",
+        example: "0.5 dur",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "gate",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set gate duration (total note length, 0 = infinite sustain)",
+        example: "0.8 gate",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "speed",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set playback speed",
+        example: "1.5 speed",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "stretch",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Time stretch factor (pitch-independent)",
+        example: "2 stretch",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "begin",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set sample start (0-1)",
+        example: "0.25 begin",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "end",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set sample end (0-1)",
+        example: "0.75 end",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "slice",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Divide sample into N equal slices",
+        example: r#""break" s 8 slice 3 pick ."#,
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "pick",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Select which slice to play (0-indexed, wraps)",
+        example: r#""break" s 8 slice 3 pick ."#,
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "voice",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set voice number",
+        example: "1 voice",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "orbit",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set orbit/bus",
+        example: "0 orbit",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "n",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set sample number",
+        example: "0 n",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "inchan",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Select input channel for live input (0-indexed)",
+        example: "0 inchan",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "cut",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Set cut group",
+        example: "1 cut",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "reset",
+        aliases: &[],
+        category: "Sample",
+        stack: "(v.. --)",
+        desc: "Reset parameter",
+        example: "1 reset",
+        compile: Param,
+        varargs: true,
+    },
+    // Oscillator
+    Word {
+        name: "freq",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set frequency (Hz)",
+        example: "440 freq",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "detune",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set detune amount",
+        example: "0.01 detune",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "pw",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set pulse width",
+        example: "0.5 pw",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "wave",
+        aliases: &["waveform"],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set drum waveform [0,1]: 0=sine, 0.5=tri, 1=saw",
+        example: "0.5 wave",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "spread",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set stereo spread",
+        example: "0.5 spread",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "mult",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set multiplier",
+        example: "2 mult",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "warp",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set warp amount",
+        example: "0.5 warp",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "mirror",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set mirror",
+        example: "1 mirror",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "harmonics",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set harmonics (add source)",
+        example: "4 harmonics",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "timbre",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set timbre (add source)",
+        example: "0.5 timbre",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "morph",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set morph (add source)",
+        example: "0.5 morph",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "partials",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set number of active harmonics (add source only)",
+        example: "16 partials",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "coarse",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set coarse tune",
+        example: "12 coarse",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "sub",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set sub oscillator level",
+        example: "0.5 sub",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "suboct",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set sub oscillator octave",
+        example: "2 suboct",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "subwave",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set sub oscillator waveform",
+        example: "1 subwave",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "note",
+        aliases: &[],
+        category: "Oscillator",
+        stack: "(v.. --)",
+        desc: "Set MIDI note",
+        example: "60 note",
+        compile: Param,
+        varargs: true,
+    },
+    // Wavetable
+    Word {
+        name: "scan",
+        aliases: &[],
+        category: "Wavetable",
+        stack: "(v.. --)",
+        desc: "Set wavetable scan position (0-1)",
+        example: "0.5 scan",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "wtlen",
+        aliases: &[],
+        category: "Wavetable",
+        stack: "(v.. --)",
+        desc: "Set wavetable cycle length in samples",
+        example: "2048 wtlen",
+        compile: Param,
+        varargs: true,
+    },
+    // FM
+    Word {
+        name: "fm",
+        aliases: &[],
+        category: "FM",
+        stack: "(v.. --)",
+        desc: "Set FM frequency",
+        example: "200 fm",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fmh",
+        aliases: &[],
+        category: "FM",
+        stack: "(v.. --)",
+        desc: "Set FM harmonic ratio",
+        example: "2 fmh",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fmshape",
+        aliases: &[],
+        category: "FM",
+        stack: "(v.. --)",
+        desc: "Set FM shape",
+        example: "0 fmshape",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fm2",
+        aliases: &[],
+        category: "FM",
+        stack: "(v.. --)",
+        desc: "Set FM operator 2 depth",
+        example: "1.5 fm2",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fm2h",
+        aliases: &[],
+        category: "FM",
+        stack: "(v.. --)",
+        desc: "Set FM operator 2 harmonic ratio",
+        example: "3 fm2h",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fmalgo",
+        aliases: &[],
+        category: "FM",
+        stack: "(v.. --)",
+        desc: "Set FM algorithm (0=cascade 1=parallel 2=branch)",
+        example: "0 fmalgo",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "fmfb",
+        aliases: &[],
+        category: "FM",
+        stack: "(v.. --)",
+        desc: "Set FM feedback amount",
+        example: "0.5 fmfb",
+        compile: Param,
+        varargs: true,
+    },
+    // Modulation
+    Word {
+        name: "vib",
+        aliases: &[],
+        category: "Modulation",
+        stack: "(v.. --)",
+        desc: "Set vibrato rate",
+        example: "5 vib",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "vibmod",
+        aliases: &[],
+        category: "Modulation",
+        stack: "(v.. --)",
+        desc: "Set vibrato depth",
+        example: "0.5 vibmod",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "vibshape",
+        aliases: &[],
+        category: "Modulation",
+        stack: "(v.. --)",
+        desc: "Set vibrato shape",
+        example: "0 vibshape",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "am",
+        aliases: &[],
+        category: "Modulation",
+        stack: "(v.. --)",
+        desc: "Set AM frequency",
+        example: "10 am",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "amdepth",
+        aliases: &[],
+        category: "Modulation",
+        stack: "(v.. --)",
+        desc: "Set AM depth",
+        example: "0.5 amdepth",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "amshape",
+        aliases: &[],
+        category: "Modulation",
+        stack: "(v.. --)",
+        desc: "Set AM shape",
+        example: "0 amshape",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "rm",
+        aliases: &[],
+        category: "Modulation",
+        stack: "(v.. --)",
+        desc: "Set RM frequency",
+        example: "100 rm",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "rmdepth",
+        aliases: &[],
+        category: "Modulation",
+        stack: "(v.. --)",
+        desc: "Set RM depth",
+        example: "0.5 rmdepth",
+        compile: Param,
+        varargs: true,
+    },
+    Word {
+        name: "rmshape",
+        aliases: &[],
+        category: "Modulation",
+        stack: "(v.. --)",
+        desc: "Set RM shape",
+        example: "0 rmshape",
+        compile: Param,
+        varargs: true,
+    },
+    // LFO
+    Word {
+        name: "ramp",
+        aliases: &[],
+        category: "LFO",
+        stack: "(freq curve -- val)",
+        desc: "Ramp [0,1]: fract(freq*beat)^curve",
+        example: "0.25 2.0 ramp",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "range",
+        aliases: &[],
+        category: "LFO",
+        stack: "(val min max -- scaled)",
+        desc: "Scale [0,1] to [min,max]",
+        example: "0.5 200 800 range => 500",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "linramp",
+        aliases: &[],
+        category: "LFO",
+        stack: "(freq -- val)",
+        desc: "Linear ramp (curve=1)",
+        example: "1.0 linramp",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "expramp",
+        aliases: &[],
+        category: "LFO",
+        stack: "(freq -- val)",
+        desc: "Exponential ramp (curve=3)",
+        example: "0.25 expramp",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "logramp",
+        aliases: &[],
+        category: "LFO",
+        stack: "(freq -- val)",
+        desc: "Logarithmic ramp (curve=0.3)",
+        example: "2.0 logramp",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "triangle",
+        aliases: &[],
+        category: "LFO",
+        stack: "(freq -- val)",
+        desc: "Triangle wave [0,1]: 0→1→0",
+        example: "0.5 triangle",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "perlin",
+        aliases: &[],
+        category: "LFO",
+        stack: "(freq -- val)",
+        desc: "Perlin noise [0,1] sampled at freq*beat",
+        example: "0.25 perlin",
+        compile: Simple,
+        varargs: false,
+    },
+    // Audio-rate Modulation DSL
+    Word {
+        name: "lfo",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max period -- str)",
+        desc: "Sine oscillation: min~max:period",
+        example: "200 4000 2 lfo lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "tlfo",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max period -- str)",
+        desc: "Triangle oscillation: min~max:periodt",
+        example: "0.3 0.7 0.5 tlfo pan",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "wlfo",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max period -- str)",
+        desc: "Sawtooth oscillation: min~max:periodw",
+        example: "200 4000 1 wlfo lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "qlfo",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max period -- str)",
+        desc: "Square oscillation: min~max:periodq",
+        example: "0.0 1.0 0.25 qlfo gain",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "slide",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(start end dur -- str)",
+        desc: "Linear transition: start>end:dur",
+        example: "0 1 0.01 slide gain",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "expslide",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(start end dur -- str)",
+        desc: "Exponential transition: start>end:dure",
+        example: "0 1 0.5 expslide gain",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "sslide",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(start end dur -- str)",
+        desc: "Smooth transition: start>end:durs",
+        example: "200 800 1 sslide lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "islide",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(start end dur -- str)",
+        desc: "Swell transition (slow start, fast finish): start>end:duri",
+        example: "200 4000 1 islide lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "oslide",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(start end dur -- str)",
+        desc: "Pluck transition (fast attack, slow settle): start>end:duro",
+        example: "0 1 0.5 oslide gain",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "pslide",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(start end dur -- str)",
+        desc: "Stair transition (8 discrete steps): start>end:durp",
+        example: "0 1 2 pslide gain",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "jit",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max period -- str)",
+        desc: "Random hold: min?max:period",
+        example: "200 4000 0.5 jit lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "sjit",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max period -- str)",
+        desc: "Smooth random: min?max:periods",
+        example: "200 4000 0.5 sjit lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "drunk",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max period -- str)",
+        desc: "Drunk walk: min?max:periodd",
+        example: "200 4000 0.5 drunk lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "ead",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max a d -- str)",
+        desc: "Percussive envelope mod: min^max:a:d:0:0",
+        example: "200 8000 0.01 0.1 ead lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "eadr",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max a d r -- str)",
+        desc: "Percussive envelope mod with release: min^max:a:d:0:r",
+        example: "200 8000 0.01 0.1 0.3 eadr lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "eadsr",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max a d s r -- str)",
+        desc: "ADSR envelope mod: min^max:a:d:s:r",
+        example: "200 8000 0.01 0.1 0.5 0.3 eadsr lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "env",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max a d s r -- str)",
+        desc: "DAHDSR envelope modulation: min^max:a:d:s:r",
+        example: "200 8000 0.01 0.1 0.5 0.3 env lpf",
+        compile: Simple,
+        varargs: false,
+    },
+    Word {
+        name: "lpg",
+        aliases: &[],
+        category: "Audio Modulation",
+        stack: "(min max depth --)",
+        desc: "Low pass gate: pairs amp envelope with lpf modulation",
+        example: "0.01 0.1 ad 200 8000 1 lpg .",
+        compile: Simple,
+        varargs: false,
+    },
+];

crates/markdown/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "cagire-markdown"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+license.workspace = true
+repository.workspace = true
+description = "Markdown rendering for cagire sequencer"
+
+[dependencies]
+minimad = "0.13"
+ratatui = "0.30"

crates/markdown/README.md

@@ -0,0 +1,15 @@
+# cagire-markdown
+
+Markdown parser and renderer that produces ratatui-styled lines. Used for the built-in help/documentation views.
+
+## Modules
+
+| Module | Description |
+|--------|-------------|
+| `parser` | Markdown-to-styled-lines conversion |
+| `highlighter` | `CodeHighlighter` trait for syntax highlighting in fenced code blocks |
+| `theme` | Color mappings for markdown elements |
+
+## Key Trait
+
+- **`CodeHighlighter`** — Implement to provide language-specific syntax highlighting. Returns `Vec<(Style, String)>` per line.

crates/markdown/src/highlighter.rs

@@ -0,0 +1,17 @@
+//! Syntax highlighting trait for fenced code blocks in markdown.
+
+use ratatui::style::Style;
+
+/// Produce styled spans from a single line of source code.
+pub trait CodeHighlighter {
+    fn highlight(&self, line: &str) -> Vec<(Style, String)>;
+}
+
+/// Pass-through highlighter that applies no styling.
+pub struct NoHighlight;
+
+impl CodeHighlighter for NoHighlight {
+    fn highlight(&self, line: &str) -> Vec<(Style, String)> {
+        vec![(Style::default(), line.to_string())]
+    }
+}

crates/markdown/src/lib.rs

@@ -0,0 +1,9 @@
+//! Parse markdown into styled ratatui lines with pluggable syntax highlighting.
+
+mod highlighter;
+mod parser;
+mod theme;
+
+pub use highlighter::{CodeHighlighter, NoHighlight};
+pub use parser::{parse, CodeBlock, ParsedMarkdown};
+pub use theme::{DefaultTheme, MarkdownTheme};

crates/markdown/src/parser.rs

@@ -0,0 +1,390 @@
+//! Parse markdown text into styled ratatui lines with syntax-highlighted code blocks.
+
+use minimad::{Composite, CompositeStyle, Compound, Line, TableRow};
+use ratatui::style::{Modifier, Style};
+use ratatui::text::{Line as RLine, Span};
+
+use crate::highlighter::CodeHighlighter;
+use crate::theme::MarkdownTheme;
+
+/// Span of lines within a parsed document that form a fenced code block.
+pub struct CodeBlock {
+    pub start_line: usize,
+    pub end_line: usize,
+    pub source: String,
+}
+
+/// Result of parsing a markdown string: styled lines and extracted code blocks.
+pub struct ParsedMarkdown {
+    pub lines: Vec<RLine<'static>>,
+    pub code_blocks: Vec<CodeBlock>,
+}
+
+/// Parse markdown text into themed, syntax-highlighted ratatui lines.
+pub fn parse<T: MarkdownTheme, H: CodeHighlighter>(
+    md: &str,
+    theme: &T,
+    highlighter: &H,
+) -> ParsedMarkdown {
+    let processed = preprocess_markdown(md);
+    let text = minimad::Text::from(processed.as_str());
+    let mut lines = Vec::new();
+
+    let mut code_line_nr: usize = 0;
+    let mut table_buffer: Vec<TableRow> = Vec::new();
+    let mut code_blocks: Vec<CodeBlock> = Vec::new();
+    let mut current_block_start: Option<usize> = None;
+    let mut current_block_source: Vec<String> = Vec::new();
+
+    let flush_table = |buf: &mut Vec<TableRow>, out: &mut Vec<RLine<'static>>, theme: &T| {
+        if buf.is_empty() {
+            return;
+        }
+        let col_widths = compute_column_widths(buf);
+        for (row_idx, row) in buf.drain(..).enumerate() {
+            out.push(render_table_row(row, row_idx, &col_widths, theme));
+        }
+    };
+
+    let close_block = |start: Option<usize>,
+                       source: &mut Vec<String>,
+                       blocks: &mut Vec<CodeBlock>,
+                       lines: &[RLine<'static>]| {
+        if let Some(start) = start {
+            blocks.push(CodeBlock {
+                start_line: start,
+                end_line: lines.len(),
+                source: std::mem::take(source).join("\n"),
+            });
+        }
+    };
+
+    for line in text.lines {
+        let is_code = matches!(&line, Line::Normal(c) if c.style == CompositeStyle::Code);
+        if !is_code {
+            close_block(
+                current_block_start.take(),
+                &mut current_block_source,
+                &mut code_blocks,
+                &lines,
+            );
+        }
+
+        match line {
+            Line::Normal(composite) if composite.style == CompositeStyle::Code => {
+                flush_table(&mut table_buffer, &mut lines, theme);
+                code_line_nr += 1;
+                if current_block_start.is_none() {
+                    current_block_start = Some(lines.len());
+                }
+                let raw: String = composite
+                    .compounds
+                    .iter()
+                    .map(|c: &minimad::Compound| c.src)
+                    .collect();
+                current_block_source.push(raw.clone());
+                let mut spans = vec![
+                    Span::styled(format!(" {code_line_nr:>2} "), theme.code_border()),
+                    Span::styled("│ ", theme.code_border()),
+                ];
+                spans.extend(
+                    highlighter
+                        .highlight(&raw)
+                        .into_iter()
+                        .map(|(style, text)| Span::styled(text, style)),
+                );
+                lines.push(RLine::from(spans));
+            }
+            Line::Normal(composite) => {
+                flush_table(&mut table_buffer, &mut lines, theme);
+                code_line_nr = 0;
+                lines.push(composite_to_line(composite, theme));
+            }
+            Line::TableRow(row) => {
+                code_line_nr = 0;
+                table_buffer.push(row);
+            }
+            Line::TableRule(_) => {}
+            _ => {
+                flush_table(&mut table_buffer, &mut lines, theme);
+                code_line_nr = 0;
+                lines.push(RLine::from(""));
+            }
+        }
+    }
+    close_block(
+        current_block_start.take(),
+        &mut current_block_source,
+        &mut code_blocks,
+        &lines,
+    );
+    flush_table(&mut table_buffer, &mut lines, theme);
+
+    ParsedMarkdown { lines, code_blocks }
+}
+
+fn preprocess_markdown(md: &str) -> String {
+    let mut out = String::with_capacity(md.len());
+    for line in md.lines() {
+        let line = convert_dash_lists(line);
+        let mut result = String::with_capacity(line.len());
+        let mut chars = line.char_indices().peekable();
+        let bytes = line.as_bytes();
+        while let Some((i, c)) = chars.next() {
+            if c == '`' {
+                result.push(c);
+                for (_, ch) in chars.by_ref() {
+                    result.push(ch);
+                    if ch == '`' {
+                        break;
+                    }
+                }
+                continue;
+            }
+            if c == '_' {
+                let before_is_space = i == 0 || bytes[i - 1] == b' ';
+                if before_is_space {
+                    if let Some(end) = line[i + 1..].find('_') {
+                        let inner = &line[i + 1..i + 1 + end];
+                        if !inner.is_empty() {
+                            result.push('*');
+                            result.push_str(inner);
+                            result.push('*');
+                            for _ in 0..end {
+                                chars.next();
+                            }
+                            chars.next();
+                            continue;
+                        }
+                    }
+                }
+            }
+            result.push(c);
+        }
+        out.push_str(&result);
+        out.push('\n');
+    }
+    out
+}
+
+fn convert_dash_lists(line: &str) -> String {
+    let trimmed = line.trim_start();
+    if let Some(rest) = trimmed.strip_prefix("- ") {
+        let indent = line.len() - trimmed.len();
+        format!("{}* {}", " ".repeat(indent), rest)
+    } else {
+        line.to_string()
+    }
+}
+
+fn cell_text_width(cell: &Composite) -> usize {
+    cell.compounds.iter().map(|c| c.src.chars().count()).sum()
+}
+
+fn compute_column_widths(rows: &[TableRow]) -> Vec<usize> {
+    let mut widths: Vec<usize> = Vec::new();
+    for row in rows {
+        for (i, cell) in row.cells.iter().enumerate() {
+            let w = cell_text_width(cell);
+            if i >= widths.len() {
+                widths.push(w);
+            } else if w > widths[i] {
+                widths[i] = w;
+            }
+        }
+    }
+    widths
+}
+
+fn render_table_row<T: MarkdownTheme>(
+    row: TableRow,
+    row_idx: usize,
+    col_widths: &[usize],
+    theme: &T,
+) -> RLine<'static> {
+    let is_header = row_idx == 0;
+    let bg = if is_header {
+        theme.table_header_bg()
+    } else if row_idx.is_multiple_of(2) {
+        theme.table_row_even()
+    } else {
+        theme.table_row_odd()
+    };
+
+    let base_style = if is_header {
+        theme.text().bg(bg).add_modifier(Modifier::BOLD)
+    } else {
+        theme.text().bg(bg)
+    };
+
+    let sep_style = theme.code_border().bg(bg);
+    let mut spans: Vec<Span<'static>> = Vec::new();
+
+    for (i, cell) in row.cells.into_iter().enumerate() {
+        if i > 0 {
+            spans.push(Span::styled(" │ ", sep_style));
+        }
+        let target_width = col_widths.get(i).copied().unwrap_or(0);
+        let cell_width = cell
+            .compounds
+            .iter()
+            .map(|c| c.src.chars().count())
+            .sum::<usize>();
+
+        for compound in cell.compounds {
+            compound_to_spans(compound, base_style, &mut spans, theme);
+        }
+
+        let padding = target_width.saturating_sub(cell_width);
+        if padding > 0 {
+            spans.push(Span::styled(" ".repeat(padding), base_style));
+        }
+    }
+
+    RLine::from(spans)
+}
+
+fn composite_to_line<T: MarkdownTheme>(composite: Composite, theme: &T) -> RLine<'static> {
+    let base_style = match composite.style {
+        CompositeStyle::Header(1) => theme.h1(),
+        CompositeStyle::Header(2) => theme.h2(),
+        CompositeStyle::Header(_) => theme.h3(),
+        CompositeStyle::ListItem(_) => theme.list(),
+        CompositeStyle::Quote => theme.quote(),
+        CompositeStyle::Code => theme.code(),
+        CompositeStyle::Paragraph => theme.text(),
+    };
+
+    let prefix: String = match composite.style {
+        CompositeStyle::ListItem(depth) => {
+            let indent = "  ".repeat(depth as usize);
+            format!("{indent}• ")
+        }
+        CompositeStyle::Quote => "  │ ".to_string(),
+        _ => String::new(),
+    };
+
+    let mut spans: Vec<Span<'static>> = Vec::new();
+    if !prefix.is_empty() {
+        spans.push(Span::styled(prefix, base_style));
+    }
+
+    for compound in composite.compounds {
+        compound_to_spans(compound, base_style, &mut spans, theme);
+    }
+
+    RLine::from(spans)
+}
+
+fn compound_to_spans<T: MarkdownTheme>(
+    compound: Compound,
+    base: Style,
+    out: &mut Vec<Span<'static>>,
+    theme: &T,
+) {
+    let mut style = base;
+
+    if compound.bold {
+        style = style.add_modifier(Modifier::BOLD);
+    }
+    if compound.italic {
+        style = style.add_modifier(Modifier::ITALIC);
+    }
+    if compound.code {
+        style = theme.code();
+    }
+    if compound.strikeout {
+        style = style.add_modifier(Modifier::CROSSED_OUT);
+    }
+
+    let src = compound.src.to_string();
+    let link_style = theme.link();
+
+    let mut rest = src.as_str();
+    while let Some(start) = rest.find('[') {
+        let after_bracket = &rest[start + 1..];
+        if let Some(text_end) = after_bracket.find("](") {
+            let url_start = start + 1 + text_end + 2;
+            if let Some(url_end) = rest[url_start..].find(')') {
+                if start > 0 {
+                    out.push(Span::styled(rest[..start].to_string(), style));
+                }
+                let text = &rest[start + 1..start + 1 + text_end];
+                let url = &rest[url_start..url_start + url_end];
+                if text == url {
+                    out.push(Span::styled(url.to_string(), link_style));
+                } else {
+                    out.push(Span::styled(text.to_string(), link_style));
+                    out.push(Span::styled(format!(" ({url})"), theme.link_url()));
+                }
+                rest = &rest[url_start + url_end + 1..];
+                continue;
+            }
+        }
+        out.push(Span::styled(rest[..start + 1].to_string(), style));
+        rest = &rest[start + 1..];
+    }
+    if !rest.is_empty() {
+        out.push(Span::styled(rest.to_string(), style));
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::highlighter::NoHighlight;
+    use crate::theme::DefaultTheme;
+
+    #[test]
+    fn test_preprocess_underscores() {
+        assert_eq!(preprocess_markdown("_italic_"), "*italic*\n");
+        assert_eq!(preprocess_markdown("word_with_underscores"), "word_with_underscores\n");
+        assert_eq!(preprocess_markdown("hello _world_"), "hello *world*\n");
+    }
+
+    #[test]
+    fn test_preprocess_dash_lists() {
+        assert_eq!(convert_dash_lists("- item"), "* item");
+        assert_eq!(convert_dash_lists("  - nested"), "  * nested");
+        assert_eq!(convert_dash_lists("not-a-list"), "not-a-list");
+    }
+
+    #[test]
+    fn test_parse_headings() {
+        let md = "# H1\n## H2\n### H3";
+        let parsed = parse(md, &DefaultTheme, &NoHighlight);
+        assert_eq!(parsed.lines.len(), 3);
+    }
+
+    #[test]
+    fn test_parse_code_block() {
+        let md = "```\ncode line\n```";
+        let parsed = parse(md, &DefaultTheme, &NoHighlight);
+        assert!(!parsed.lines.is_empty());
+        assert_eq!(parsed.code_blocks.len(), 1);
+        assert_eq!(parsed.code_blocks[0].source, "code line");
+    }
+
+    #[test]
+    fn test_parse_table() {
+        let md = "| A | B |\n|---|---|\n| 1 | 2 |";
+        let parsed = parse(md, &DefaultTheme, &NoHighlight);
+        assert_eq!(parsed.lines.len(), 2);
+    }
+
+    #[test]
+    fn test_default_theme_works() {
+        let md = "Hello **world**";
+        let parsed = parse(md, &DefaultTheme, &NoHighlight);
+        assert_eq!(parsed.lines.len(), 1);
+    }
+
+    #[test]
+    fn test_multiple_code_blocks() {
+        let md = "text\n```\nfirst\n```\nmore text\n```\nsecond line 1\nsecond line 2\n```";
+        let parsed = parse(md, &DefaultTheme, &NoHighlight);
+        assert_eq!(parsed.code_blocks.len(), 2);
+        assert_eq!(parsed.code_blocks[0].source, "first");
+        assert_eq!(parsed.code_blocks[1].source, "second line 1\nsecond line 2");
+    }
+}

crates/markdown/src/theme.rs

@@ -0,0 +1,81 @@
+//! Style provider trait for markdown rendering.
+
+use ratatui::style::{Color, Modifier, Style};
+
+/// Style provider for each markdown element type.
+pub trait MarkdownTheme {
+    fn h1(&self) -> Style;
+    fn h2(&self) -> Style;
+    fn h3(&self) -> Style;
+    fn text(&self) -> Style;
+    fn code(&self) -> Style;
+    fn code_border(&self) -> Style;
+    fn link(&self) -> Style;
+    fn link_url(&self) -> Style;
+    fn quote(&self) -> Style;
+    fn list(&self) -> Style;
+    fn table_header_bg(&self) -> Color;
+    fn table_row_even(&self) -> Color;
+    fn table_row_odd(&self) -> Color;
+}
+
+/// Fallback theme with hardcoded terminal colors, used in tests.
+pub struct DefaultTheme;
+
+impl MarkdownTheme for DefaultTheme {
+    fn h1(&self) -> Style {
+        Style::new()
+            .fg(Color::Cyan)
+            .add_modifier(Modifier::BOLD | Modifier::UNDERLINED)
+    }
+
+    fn h2(&self) -> Style {
+        Style::new().fg(Color::Blue).add_modifier(Modifier::BOLD)
+    }
+
+    fn h3(&self) -> Style {
+        Style::new().fg(Color::Magenta).add_modifier(Modifier::BOLD)
+    }
+
+    fn text(&self) -> Style {
+        Style::new().fg(Color::White)
+    }
+
+    fn code(&self) -> Style {
+        Style::new().fg(Color::Yellow)
+    }
+
+    fn code_border(&self) -> Style {
+        Style::new().fg(Color::DarkGray)
+    }
+
+    fn link(&self) -> Style {
+        Style::new()
+            .fg(Color::Blue)
+            .add_modifier(Modifier::UNDERLINED)
+    }
+
+    fn link_url(&self) -> Style {
+        Style::new().fg(Color::DarkGray)
+    }
+
+    fn quote(&self) -> Style {
+        Style::new().fg(Color::Gray)
+    }
+
+    fn list(&self) -> Style {
+        Style::new().fg(Color::White)
+    }
+
+    fn table_header_bg(&self) -> Color {
+        Color::DarkGray
+    }
+
+    fn table_row_even(&self) -> Color {
+        Color::Reset
+    }
+
+    fn table_row_odd(&self) -> Color {
+        Color::Reset
+    }
+}

crates/project/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "cagire-project"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+license.workspace = true
+repository.workspace = true
+description = "Project data structures for cagire sequencer"
+
+[dependencies]
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+rmp-serde = "1"
+brotli = "7"
+base64 = "0.22"
+
+[dev-dependencies]
+flate2 = "1"

crates/project/README.md

@@ -0,0 +1,22 @@
+# cagire-project
+
+Project data model and persistence for Cagire.
+
+## Modules
+
+| Module | Description |
+|--------|-------------|
+| `project` | `Project`, `Bank`, `Pattern`, `Step` structs and constants |
+| `file` | File I/O (save/load) |
+| `share` | Project sharing/export |
+
+## Key Types
+
+- **`Project`** — Top-level container: banks of patterns
+- **`Bank`** — Collection of patterns
+- **`Pattern`** — Sequence of steps with metadata
+- **`Step`** — Single step holding a Forth script
+
+## Constants
+
+`MAX_BANKS=32`, `MAX_PATTERNS=32`, `MAX_STEPS=1024`

crates/project/src/file.rs

@@ -0,0 +1,143 @@
+//! JSON-based project file persistence with versioned format.
+
+use std::fs;
+use std::io;
+use std::path::{Path, PathBuf};
+
+use serde::{Deserialize, Serialize};
+
+use crate::project::{Bank, PatternSpeed, Project};
+
+const VERSION: u8 = 1;
+const EXTENSION: &str = "cagire";
+
+fn ensure_extension(path: &Path) -> PathBuf {
+    if path.extension().map(|e| e == EXTENSION).unwrap_or(false) {
+        path.to_path_buf()
+    } else {
+        path.with_extension(EXTENSION)
+    }
+}
+
+#[derive(Serialize, Deserialize)]
+struct ProjectFile {
+    version: u8,
+    banks: Vec<Bank>,
+    #[serde(default)]
+    sample_paths: Vec<PathBuf>,
+    #[serde(default = "default_tempo")]
+    tempo: f64,
+    #[serde(default)]
+    playing_patterns: Vec<(usize, usize)>,
+    #[serde(default, skip_serializing_if = "String::is_empty")]
+    prelude: String,
+    #[serde(default, skip_serializing_if = "String::is_empty")]
+    script: String,
+    #[serde(default, skip_serializing_if = "is_default_speed")]
+    script_speed: PatternSpeed,
+    #[serde(default = "default_script_length", skip_serializing_if = "is_default_script_length")]
+    script_length: usize,
+}
+
+fn is_default_speed(s: &PatternSpeed) -> bool {
+    *s == PatternSpeed::default()
+}
+
+fn default_script_length() -> usize {
+    16
+}
+
+fn is_default_script_length(n: &usize) -> bool {
+    *n == default_script_length()
+}
+
+fn default_tempo() -> f64 {
+    120.0
+}
+
+impl From<&Project> for ProjectFile {
+    fn from(project: &Project) -> Self {
+        Self {
+            version: VERSION,
+            banks: project.banks.clone(),
+            sample_paths: project.sample_paths.clone(),
+            tempo: project.tempo,
+            playing_patterns: project.playing_patterns.clone(),
+            prelude: project.prelude.clone(),
+            script: project.script.clone(),
+            script_speed: project.script_speed,
+            script_length: project.script_length,
+        }
+    }
+}
+
+impl From<ProjectFile> for Project {
+    fn from(file: ProjectFile) -> Self {
+        let mut project = Self {
+            banks: file.banks,
+            sample_paths: file.sample_paths,
+            tempo: file.tempo,
+            playing_patterns: file.playing_patterns,
+            prelude: file.prelude,
+            script: file.script,
+            script_speed: file.script_speed,
+            script_length: file.script_length,
+        };
+        project.normalize();
+        project
+    }
+}
+
+/// Error returned by project save/load operations.
+#[derive(Debug)]
+pub enum FileError {
+    Io(io::Error),
+    Json(serde_json::Error),
+    Version(u8),
+}
+
+impl std::fmt::Display for FileError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            FileError::Io(e) => write!(f, "IO error: {e}"),
+            FileError::Json(e) => write!(f, "JSON error: {e}"),
+            FileError::Version(v) => write!(f, "Unsupported version: {v}"),
+        }
+    }
+}
+
+impl From<io::Error> for FileError {
+    fn from(e: io::Error) -> Self {
+        FileError::Io(e)
+    }
+}
+
+impl From<serde_json::Error> for FileError {
+    fn from(e: serde_json::Error) -> Self {
+        FileError::Json(e)
+    }
+}
+
+/// Write a project to disk as pretty-printed JSON, returning the final path.
+pub fn save(project: &Project, path: &Path) -> Result<PathBuf, FileError> {
+    let path = ensure_extension(path);
+    let file = ProjectFile::from(project);
+    let json = serde_json::to_string_pretty(&file)?;
+    fs::write(&path, json)?;
+    Ok(path)
+}
+
+/// Read a project from a `.cagire` file on disk.
+pub fn load(path: &Path) -> Result<Project, FileError> {
+    let json = fs::read_to_string(path)?;
+    load_str(&json)
+}
+
+/// Parse a project from a JSON string.
+pub fn load_str(json: &str) -> Result<Project, FileError> {
+    let file: ProjectFile = serde_json::from_str(json)?;
+    if file.version > VERSION {
+        return Err(FileError::Version(file.version));
+    }
+    Ok(Project::from(file))
+}

crates/project/src/lib.rs

@@ -0,0 +1,17 @@
+//! Project data model: banks, patterns, and steps for the Cagire sequencer.
+
+mod file;
+mod project;
+pub mod share;
+
+/// Maximum number of banks in a project.
+pub const MAX_BANKS: usize = 32;
+/// Maximum number of patterns per bank.
+pub const MAX_PATTERNS: usize = 32;
+/// Maximum number of steps per pattern.
+pub const MAX_STEPS: usize = 1024;
+/// Default pattern length in steps.
+pub const DEFAULT_LENGTH: usize = 16;
+
+pub use file::{load, load_str, save, FileError};
+pub use project::{Bank, FollowUp, LaunchQuantization, Pattern, PatternSpeed, Project, Step};

crates/project/src/project.rs

@@ -0,0 +1,588 @@
+//! Project, Bank, Pattern, and Step structs with serialization.
+
+use std::path::PathBuf;
+
+use serde::{Deserialize, Deserializer, Serialize, Serializer};
+
+use crate::{DEFAULT_LENGTH, MAX_BANKS, MAX_PATTERNS, MAX_STEPS};
+
+/// Speed multiplier for a pattern, expressed as a rational fraction.
+#[derive(Clone, Copy, PartialEq, Eq)]
+pub struct PatternSpeed {
+    pub num: u8,
+    pub denom: u8,
+}
+
+impl PatternSpeed {
+    pub const EIGHTH: Self = Self { num: 1, denom: 8 };
+    pub const FIFTH: Self = Self { num: 1, denom: 5 };
+    pub const QUARTER: Self = Self { num: 1, denom: 4 };
+    pub const THIRD: Self = Self { num: 1, denom: 3 };
+    pub const HALF: Self = Self { num: 1, denom: 2 };
+    pub const TWO_THIRDS: Self = Self { num: 2, denom: 3 };
+    pub const NORMAL: Self = Self { num: 1, denom: 1 };
+    pub const DOUBLE: Self = Self { num: 2, denom: 1 };
+    pub const QUAD: Self = Self { num: 4, denom: 1 };
+    pub const OCTO: Self = Self { num: 8, denom: 1 };
+
+    const PRESETS: &[Self] = &[
+        Self::EIGHTH,
+        Self::FIFTH,
+        Self::QUARTER,
+        Self::THIRD,
+        Self::HALF,
+        Self::TWO_THIRDS,
+        Self::NORMAL,
+        Self::DOUBLE,
+        Self::QUAD,
+        Self::OCTO,
+    ];
+
+    /// Return the speed as a floating-point multiplier.
+    pub fn multiplier(&self) -> f64 {
+        self.num as f64 / self.denom as f64
+    }
+
+    /// Format as a human-readable label (e.g. "2x", "1/4x").
+    pub fn label(&self) -> String {
+        if self.denom == 1 {
+            format!("{}x", self.num)
+        } else {
+            format!("{}/{}x", self.num, self.denom)
+        }
+    }
+
+    /// Return the next faster preset, or self if already at maximum.
+    pub fn next(&self) -> Self {
+        let current = self.multiplier();
+        Self::PRESETS
+            .iter()
+            .find(|p| p.multiplier() > current + 0.0001)
+            .copied()
+            .unwrap_or(*self)
+    }
+
+    /// Return the next slower preset, or self if already at minimum.
+    pub fn prev(&self) -> Self {
+        let current = self.multiplier();
+        Self::PRESETS
+            .iter()
+            .rev()
+            .find(|p| p.multiplier() < current - 0.0001)
+            .copied()
+            .unwrap_or(*self)
+    }
+
+    /// Parse a speed label like "2x" or "1/4x" into a `PatternSpeed`.
+    pub fn from_label(s: &str) -> Option<Self> {
+        let s = s.trim().trim_end_matches('x');
+        if let Some((num, denom)) = s.split_once('/') {
+            let num: u8 = num.parse().ok()?;
+            let denom: u8 = denom.parse().ok()?;
+            if denom == 0 {
+                return None;
+            }
+            return Some(Self { num, denom });
+        }
+        if let Ok(val) = s.parse::<f64>() {
+            if val <= 0.0 || val > 255.0 {
+                return None;
+            }
+            if (val - val.round()).abs() < 0.0001 {
+                return Some(Self {
+                    num: val.round() as u8,
+                    denom: 1,
+                });
+            }
+            for denom in 1..=16u8 {
+                let num = val * denom as f64;
+                if (num - num.round()).abs() < 0.0001 && (1.0..=255.0).contains(&num) {
+                    return Some(Self {
+                        num: num.round() as u8,
+                        denom,
+                    });
+                }
+            }
+        }
+        None
+    }
+}
+
+impl Default for PatternSpeed {
+    fn default() -> Self {
+        Self::NORMAL
+    }
+}
+
+impl Serialize for PatternSpeed {
+    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
+        (self.num, self.denom).serialize(serializer)
+    }
+}
+
+impl<'de> Deserialize<'de> for PatternSpeed {
+    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
+        #[derive(Deserialize)]
+        #[serde(untagged)]
+        enum SpeedFormat {
+            Tuple((u8, u8)),
+            Legacy(String),
+        }
+
+        match SpeedFormat::deserialize(deserializer)? {
+            SpeedFormat::Tuple((num, denom)) => Ok(Self { num, denom }),
+            SpeedFormat::Legacy(s) => Ok(match s.as_str() {
+                "Eighth" => Self::EIGHTH,
+                "Quarter" => Self::QUARTER,
+                "Half" => Self::HALF,
+                "Normal" => Self::NORMAL,
+                "Double" => Self::DOUBLE,
+                "Quad" => Self::QUAD,
+                "Octo" => Self::OCTO,
+                _ => Self::NORMAL,
+            }),
+        }
+    }
+}
+
+/// Quantization grid for launching patterns.
+#[derive(Clone, Copy, Serialize, Deserialize, Default, PartialEq, Eq)]
+pub enum LaunchQuantization {
+    Immediate,
+    Beat,
+    #[default]
+    Bar,
+    Bars2,
+    Bars4,
+    Bars8,
+}
+
+impl LaunchQuantization {
+    /// Human-readable label for display.
+    pub fn label(&self) -> &'static str {
+        match self {
+            Self::Immediate => "Immediate",
+            Self::Beat => "Beat",
+            Self::Bar => "1 Bar",
+            Self::Bars2 => "2 Bars",
+            Self::Bars4 => "4 Bars",
+            Self::Bars8 => "8 Bars",
+        }
+    }
+
+    pub fn short_label(&self) -> &'static str {
+        match self {
+            Self::Immediate => "Imm",
+            Self::Beat => "Bt",
+            Self::Bar => "1B",
+            Self::Bars2 => "2B",
+            Self::Bars4 => "4B",
+            Self::Bars8 => "8B",
+        }
+    }
+
+    /// Cycle to the next longer quantization, clamped at `Bars8`.
+    pub fn next(&self) -> Self {
+        match self {
+            Self::Immediate => Self::Beat,
+            Self::Beat => Self::Bar,
+            Self::Bar => Self::Bars2,
+            Self::Bars2 => Self::Bars4,
+            Self::Bars4 => Self::Bars8,
+            Self::Bars8 => Self::Bars8,
+        }
+    }
+
+    /// Cycle to the next shorter quantization, clamped at `Immediate`.
+    pub fn prev(&self) -> Self {
+        match self {
+            Self::Immediate => Self::Immediate,
+            Self::Beat => Self::Immediate,
+            Self::Bar => Self::Beat,
+            Self::Bars2 => Self::Bar,
+            Self::Bars4 => Self::Bars2,
+            Self::Bars8 => Self::Bars4,
+        }
+    }
+}
+
+/// What happens when a pattern finishes: loop, stop, or chain to another.
+#[derive(Clone, Copy, Serialize, Deserialize, Default, PartialEq, Eq)]
+pub enum FollowUp {
+    #[default]
+    Loop,
+    Stop,
+    Chain { bank: usize, pattern: usize },
+}
+
+impl FollowUp {
+    /// Human-readable label for display.
+    pub fn label(&self) -> &'static str {
+        match self {
+            Self::Loop => "Loop",
+            Self::Stop => "Stop",
+            Self::Chain { .. } => "Chain",
+        }
+    }
+
+    /// Cycle forward through follow-up modes.
+    pub fn next_mode(&self) -> Self {
+        match self {
+            Self::Loop => Self::Stop,
+            Self::Stop => Self::Chain { bank: 0, pattern: 0 },
+            Self::Chain { .. } => Self::Loop,
+        }
+    }
+
+    /// Cycle backward through follow-up modes.
+    pub fn prev_mode(&self) -> Self {
+        match self {
+            Self::Loop => Self::Chain { bank: 0, pattern: 0 },
+            Self::Stop => Self::Loop,
+            Self::Chain { .. } => Self::Stop,
+        }
+    }
+}
+
+fn is_default_follow_up(f: &FollowUp) -> bool {
+    *f == FollowUp::default()
+}
+
+/// Single step in a pattern, holding a Forth script and optional metadata.
+#[derive(Clone, Serialize, Deserialize)]
+pub struct Step {
+    pub active: bool,
+    pub script: String,
+    #[serde(default)]
+    pub source: Option<u8>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub name: Option<String>,
+}
+
+impl Step {
+    /// True if all fields are at their default values.
+    pub fn is_default(&self) -> bool {
+        self.active && self.script.is_empty() && self.source.is_none() && self.name.is_none()
+    }
+
+    /// True if the script is non-empty.
+    pub fn has_content(&self) -> bool {
+        !self.script.is_empty()
+    }
+}
+
+impl Default for Step {
+    fn default() -> Self {
+        Self {
+            active: true,
+            script: String::new(),
+            source: None,
+            name: None,
+        }
+    }
+}
+
+/// Sequence of steps with playback settings (speed, quantization, follow-up).
+#[derive(Clone)]
+pub struct Pattern {
+    pub steps: Vec<Step>,
+    pub length: usize,
+    pub speed: PatternSpeed,
+    pub name: Option<String>,
+    pub description: Option<String>,
+    pub quantization: LaunchQuantization,
+    pub follow_up: FollowUp,
+}
+
+#[derive(Serialize, Deserialize)]
+struct SparseStep {
+    i: usize,
+    #[serde(default = "default_active", skip_serializing_if = "is_true")]
+    active: bool,
+    #[serde(default, skip_serializing_if = "String::is_empty")]
+    script: String,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    source: Option<u8>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    name: Option<String>,
+}
+
+fn default_active() -> bool {
+    true
+}
+
+fn is_true(v: &bool) -> bool {
+    *v
+}
+
+#[derive(Serialize, Deserialize)]
+struct SparsePattern {
+    steps: Vec<SparseStep>,
+    length: usize,
+    #[serde(default)]
+    speed: PatternSpeed,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    name: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    description: Option<String>,
+    #[serde(default, skip_serializing_if = "is_default_quantization")]
+    quantization: LaunchQuantization,
+    #[serde(default, skip_serializing_if = "is_default_follow_up")]
+    follow_up: FollowUp,
+}
+
+fn is_default_quantization(q: &LaunchQuantization) -> bool {
+    *q == LaunchQuantization::default()
+}
+
+#[derive(Deserialize)]
+struct LegacyPattern {
+    steps: Vec<Step>,
+    length: usize,
+    #[serde(default)]
+    speed: PatternSpeed,
+    #[serde(default)]
+    name: Option<String>,
+    #[serde(default)]
+    description: Option<String>,
+    #[serde(default)]
+    quantization: LaunchQuantization,
+    #[serde(default)]
+    follow_up: FollowUp,
+}
+
+impl Serialize for Pattern {
+    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
+        let sparse_steps: Vec<SparseStep> = self
+            .steps
+            .iter()
+            .enumerate()
+            .filter(|(_, step)| !step.is_default())
+            .map(|(i, step)| SparseStep {
+                i,
+                active: step.active,
+                script: step.script.clone(),
+                source: step.source,
+                name: step.name.clone(),
+            })
+            .collect();
+
+        let sparse = SparsePattern {
+            steps: sparse_steps,
+            length: self.length,
+            speed: self.speed,
+            name: self.name.clone(),
+            description: self.description.clone(),
+            quantization: self.quantization,
+            follow_up: self.follow_up,
+        };
+        sparse.serialize(serializer)
+    }
+}
+
+impl<'de> Deserialize<'de> for Pattern {
+    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
+        #[derive(Deserialize)]
+        #[serde(untagged)]
+        enum PatternFormat {
+            Sparse(SparsePattern),
+            Legacy(LegacyPattern),
+        }
+
+        match PatternFormat::deserialize(deserializer)? {
+            PatternFormat::Sparse(sparse) => {
+                let mut steps: Vec<Step> = (0..MAX_STEPS).map(|_| Step::default()).collect();
+                for ss in sparse.steps {
+                    if ss.i < MAX_STEPS {
+                        steps[ss.i] = Step {
+                            active: ss.active,
+                            script: ss.script,
+                            source: ss.source,
+                            name: ss.name,
+                        };
+                    }
+                }
+                Ok(Pattern {
+                    steps,
+                    length: sparse.length,
+                    speed: sparse.speed,
+                    name: sparse.name,
+                    description: sparse.description,
+                    quantization: sparse.quantization,
+                    follow_up: sparse.follow_up,
+                })
+            }
+            PatternFormat::Legacy(legacy) => Ok(Pattern {
+                steps: legacy.steps,
+                length: legacy.length,
+                speed: legacy.speed,
+                name: legacy.name,
+                description: legacy.description,
+                quantization: legacy.quantization,
+                follow_up: legacy.follow_up,
+            }),
+        }
+    }
+}
+
+impl Default for Pattern {
+    fn default() -> Self {
+        Self {
+            steps: (0..MAX_STEPS).map(|_| Step::default()).collect(),
+            length: DEFAULT_LENGTH,
+            speed: PatternSpeed::default(),
+            name: None,
+            description: None,
+            quantization: LaunchQuantization::default(),
+            follow_up: FollowUp::default(),
+        }
+    }
+}
+
+impl Pattern {
+    /// Borrow a step by index.
+    pub fn step(&self, index: usize) -> Option<&Step> {
+        self.steps.get(index)
+    }
+
+    /// Mutably borrow a step by index.
+    pub fn step_mut(&mut self, index: usize) -> Option<&mut Step> {
+        self.steps.get_mut(index)
+    }
+
+    /// Set the active length, clamped to `[1, MAX_STEPS]`.
+    pub fn set_length(&mut self, length: usize) {
+        let length = length.clamp(1, MAX_STEPS);
+        while self.steps.len() < length {
+            self.steps.push(Step::default());
+        }
+        self.length = length;
+    }
+
+    /// Follow the source chain from `index` to find the originating step.
+    pub fn resolve_source(&self, index: usize) -> usize {
+        let mut current = index;
+        for _ in 0..self.steps.len() {
+            if let Some(step) = self.steps.get(current) {
+                if let Some(source) = step.source {
+                    current = source as usize;
+                } else {
+                    return current;
+                }
+            } else {
+                return index;
+            }
+        }
+        index
+    }
+
+    /// Return the script at the resolved source of `index`.
+    pub fn resolve_script(&self, index: usize) -> Option<&str> {
+        let source_idx = self.resolve_source(index);
+        self.steps.get(source_idx).map(|s| s.script.as_str())
+    }
+
+    /// Count active-length steps that have a script or a source reference.
+    pub fn content_step_count(&self) -> usize {
+        self.steps[..self.length]
+            .iter()
+            .filter(|s| s.has_content() || s.source.is_some())
+            .count()
+    }
+}
+
+/// Collection of patterns forming a bank.
+#[derive(Clone, Serialize, Deserialize)]
+pub struct Bank {
+    pub patterns: Vec<Pattern>,
+    #[serde(default)]
+    pub name: Option<String>,
+    #[serde(default)]
+    pub prelude: String,
+}
+
+impl Bank {
+    /// Count patterns that contain at least one non-empty step.
+    pub fn content_pattern_count(&self) -> usize {
+        self.patterns
+            .iter()
+            .filter(|p| p.content_step_count() > 0)
+            .count()
+    }
+}
+
+impl Default for Bank {
+    fn default() -> Self {
+        Self {
+            patterns: (0..MAX_PATTERNS).map(|_| Pattern::default()).collect(),
+            name: None,
+            prelude: String::new(),
+        }
+    }
+}
+
+/// Top-level project: banks, tempo, sample paths, and prelude script.
+#[derive(Clone, Serialize, Deserialize)]
+pub struct Project {
+    pub banks: Vec<Bank>,
+    #[serde(default)]
+    pub sample_paths: Vec<PathBuf>,
+    #[serde(default = "default_tempo")]
+    pub tempo: f64,
+    #[serde(default)]
+    pub playing_patterns: Vec<(usize, usize)>,
+    #[serde(default)]
+    pub prelude: String,
+    #[serde(default)]
+    pub script: String,
+    #[serde(default)]
+    pub script_speed: PatternSpeed,
+    #[serde(default = "default_script_length")]
+    pub script_length: usize,
+}
+
+fn default_tempo() -> f64 {
+    120.0
+}
+
+fn default_script_length() -> usize {
+    16
+}
+
+impl Default for Project {
+    fn default() -> Self {
+        Self {
+            banks: (0..MAX_BANKS).map(|_| Bank::default()).collect(),
+            sample_paths: Vec::new(),
+            tempo: default_tempo(),
+            playing_patterns: Vec::new(),
+            prelude: String::new(),
+            script: String::new(),
+            script_speed: PatternSpeed::default(),
+            script_length: default_script_length(),
+        }
+    }
+}
+
+impl Project {
+    /// Borrow a pattern by bank and pattern index.
+    pub fn pattern_at(&self, bank: usize, pattern: usize) -> &Pattern {
+        &self.banks[bank].patterns[pattern]
+    }
+
+    /// Mutably borrow a pattern by bank and pattern index.
+    pub fn pattern_at_mut(&mut self, bank: usize, pattern: usize) -> &mut Pattern {
+        &mut self.banks[bank].patterns[pattern]
+    }
+
+    /// Pad banks, patterns, and steps to their maximum sizes after deserialization.
+    pub fn normalize(&mut self) {
+        self.banks.resize_with(MAX_BANKS, Bank::default);
+        for bank in &mut self.banks {
+            bank.patterns.resize_with(MAX_PATTERNS, Pattern::default);
+            for pattern in &mut bank.patterns {
+                pattern.steps.resize_with(MAX_STEPS, Step::default);
+            }
+        }
+    }
+}

crates/project/src/share.rs

@@ -0,0 +1,237 @@
+//! Pattern and project sharing via compact text strings.
+//!
+//! Export: data → MessagePack → Brotli → base64 URL-safe → prefix
+//! Import: strip prefix → base64 decode → Brotli decompress → MessagePack → data
+
+use base64::engine::general_purpose::URL_SAFE_NO_PAD;
+use base64::Engine;
+
+use crate::{Bank, Pattern};
+
+const PATTERN_PREFIX: &str = "cgr:";
+const BANK_PREFIX: &str = "cgrb:";
+
+pub enum ImportResult {
+    Pattern(Pattern),
+    Bank(Bank),
+}
+
+/// Auto-detect format from the prefix and decode.
+pub fn import_auto(text: &str) -> Result<ImportResult, ShareError> {
+    // Strip everything non-ASCII — valid share strings are pure ASCII
+    let clean: String = text.chars().filter(|c| c.is_ascii_graphic()).collect();
+    if clean.starts_with(BANK_PREFIX) {
+        Ok(ImportResult::Bank(decode(&clean, BANK_PREFIX)?))
+    } else if clean.starts_with(PATTERN_PREFIX) {
+        Ok(ImportResult::Pattern(decode(&clean, PATTERN_PREFIX)?))
+    } else {
+        Err(ShareError::InvalidPrefix)
+    }
+}
+
+/// Error during pattern or bank import/export.
+#[derive(Debug)]
+pub enum ShareError {
+    InvalidPrefix,
+    Base64(base64::DecodeError),
+    Decompress(std::io::Error),
+    Deserialize(rmp_serde::decode::Error),
+    Serialize(rmp_serde::encode::Error),
+    Compress(std::io::Error),
+}
+
+impl std::fmt::Display for ShareError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::InvalidPrefix => write!(f, "missing cgr:/cgrb: prefix"),
+            Self::Base64(e) => write!(f, "base64: {e}"),
+            Self::Decompress(e) => write!(f, "decompress: {e}"),
+            Self::Deserialize(e) => write!(f, "deserialize: {e}"),
+            Self::Serialize(e) => write!(f, "serialize: {e}"),
+            Self::Compress(e) => write!(f, "compress: {e}"),
+        }
+    }
+}
+
+fn compress(data: &[u8]) -> Result<Vec<u8>, ShareError> {
+    let mut output = Vec::new();
+    let params = brotli::enc::BrotliEncoderParams {
+        quality: 11,
+        lgwin: 22,
+        lgblock: 0,
+        ..Default::default()
+    };
+    brotli::BrotliCompress(&mut &data[..], &mut output, &params).map_err(ShareError::Compress)?;
+    Ok(output)
+}
+
+fn decompress(data: &[u8]) -> Result<Vec<u8>, ShareError> {
+    let mut output = Vec::new();
+    brotli::BrotliDecompress(&mut &data[..], &mut output).map_err(ShareError::Decompress)?;
+    Ok(output)
+}
+
+fn encode<T: serde::Serialize>(value: &T, prefix: &str) -> Result<String, ShareError> {
+    let packed = rmp_serde::to_vec_named(value).map_err(ShareError::Serialize)?;
+    let compressed = compress(&packed)?;
+    let encoded = URL_SAFE_NO_PAD.encode(&compressed);
+    Ok(format!("{prefix}{encoded}"))
+}
+
+fn decode<T: serde::de::DeserializeOwned>(text: &str, prefix: &str) -> Result<T, ShareError> {
+    let text = text.trim();
+    let payload = text.strip_prefix(prefix).ok_or(ShareError::InvalidPrefix)?;
+    // Strip invisible characters that clipboard managers / web copies can inject
+    let clean: String = payload
+        .chars()
+        .filter(|c| c.is_ascii_alphanumeric() || *c == '-' || *c == '_')
+        .collect();
+    let compressed = URL_SAFE_NO_PAD.decode(&clean).map_err(ShareError::Base64)?;
+    let packed = decompress(&compressed)?;
+    rmp_serde::from_slice(&packed).map_err(ShareError::Deserialize)
+}
+
+/// Encode a pattern as a shareable `cgr:` string.
+pub fn export(pattern: &Pattern) -> Result<String, ShareError> {
+    encode(pattern, PATTERN_PREFIX)
+}
+
+/// Decode a `cgr:` string back into a pattern.
+pub fn import(text: &str) -> Result<Pattern, ShareError> {
+    decode(text, PATTERN_PREFIX)
+}
+
+/// Encode a bank as a shareable `cgrb:` string.
+pub fn export_bank(bank: &Bank) -> Result<String, ShareError> {
+    encode(bank, BANK_PREFIX)
+}
+
+/// Decode a `cgrb:` string back into a bank.
+pub fn import_bank(text: &str) -> Result<Bank, ShareError> {
+    decode(text, BANK_PREFIX)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::Step;
+
+    #[test]
+    fn roundtrip_empty() {
+        let pattern = Pattern::default();
+        let encoded = export(&pattern).expect("export pattern");
+        assert!(encoded.starts_with("cgr:"));
+        let decoded = import(&encoded).expect("import pattern");
+        assert_eq!(decoded.length, pattern.length);
+        assert_eq!(decoded.steps.len(), pattern.steps.len());
+    }
+
+    #[test]
+    fn roundtrip_with_steps() {
+        let mut pattern = Pattern::default();
+        pattern.steps[0] = Step {
+            active: true,
+            script: "kick 60 note".to_string(),
+            source: None,
+            name: Some("kick".to_string()),
+        };
+        pattern.steps[1] = Step {
+            active: false,
+            script: "snare".to_string(),
+            source: None,
+            name: None,
+        };
+        pattern.steps[3] = Step {
+            active: true,
+            script: String::new(),
+            source: Some(0),
+            name: None,
+        };
+        pattern.length = 8;
+        pattern.name = Some("Test".to_string());
+
+        let encoded = export(&pattern).expect("export pattern");
+        let decoded = import(&encoded).expect("import pattern");
+
+        assert_eq!(decoded.length, 8);
+        assert_eq!(decoded.name.as_deref(), Some("Test"));
+        assert_eq!(decoded.steps[0].script, "kick 60 note");
+        assert_eq!(decoded.steps[0].name.as_deref(), Some("kick"));
+        assert!(!decoded.steps[1].active);
+        assert_eq!(decoded.steps[1].script, "snare");
+        assert_eq!(decoded.steps[3].source, Some(0));
+    }
+
+    #[test]
+    fn bad_prefix() {
+        assert!(matches!(import("xxx:abc"), Err(ShareError::InvalidPrefix)));
+    }
+
+    #[test]
+    fn bad_base64() {
+        assert!(import("cgr:not-valid-data").is_err());
+    }
+
+    #[test]
+    fn whitespace_trimming() {
+        let pattern = Pattern::default();
+        let encoded = export(&pattern).expect("export pattern");
+        let padded = format!("  {encoded}  \n");
+        let decoded = import(&padded).expect("import padded pattern");
+        assert_eq!(decoded.length, pattern.length);
+    }
+
+    #[test]
+    fn msgpack_brotli_smaller_than_json_deflate() {
+        let mut pattern = Pattern::default();
+        for i in 0..16 {
+            pattern.steps[i] = Step {
+                active: true,
+                script: format!("kick {i} note 0.5 gate"),
+                source: None,
+                name: Some(format!("step_{i}")),
+            };
+        }
+        pattern.length = 16;
+
+        // Current (msgpack+brotli)
+        let new_encoded = export(&pattern).expect("export pattern");
+
+        // Old pipeline (json+deflate) for comparison
+        use std::io::Write;
+        let json = serde_json::to_vec(&pattern).expect("serialize json");
+        let mut encoder =
+            flate2::write::DeflateEncoder::new(Vec::new(), flate2::Compression::best());
+        encoder.write_all(&json).expect("write to encoder");
+        let old_compressed = encoder.finish().expect("finish encoder");
+        let old_encoded = format!("cgr:{}", URL_SAFE_NO_PAD.encode(&old_compressed));
+
+        assert!(
+            new_encoded.len() < old_encoded.len(),
+            "msgpack+brotli ({}) should be smaller than json+deflate ({})",
+            new_encoded.len(),
+            old_encoded.len()
+        );
+    }
+
+    #[test]
+    fn roundtrip_bank() {
+        let mut bank = Bank::default();
+        bank.patterns[0].steps[0] = Step {
+            active: true,
+            script: "kick 60 note".to_string(),
+            source: None,
+            name: Some("kick".to_string()),
+        };
+        bank.patterns[0].length = 8;
+        bank.name = Some("Drums".to_string());
+
+        let encoded = export_bank(&bank).expect("export bank");
+        assert!(encoded.starts_with("cgrb:"));
+        let decoded = import_bank(&encoded).expect("import bank");
+
+        assert_eq!(decoded.name.as_deref(), Some("Drums"));
+        assert_eq!(decoded.patterns[0].length, 8);
+        assert_eq!(decoded.patterns[0].steps[0].script, "kick 60 note");
+    }
+}

crates/ratatui/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "cagire-ratatui"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+license.workspace = true
+repository.workspace = true
+description = "TUI components for cagire sequencer"
+
+[dependencies]
+rand = "0.8"
+ratatui = "0.30"
+regex = "1"
+tui-textarea = { git = "https://github.com/phsym/tui-textarea", rev = "e2ec4d3", features = ["search"] }

crates/ratatui/README.md

@@ -0,0 +1,25 @@
+# cagire-ratatui
+
+TUI widget library and theme system for Cagire.
+
+## Widgets
+
+`category_list`, `confirm`, `editor`, `file_browser`, `hint_bar`, `lissajous`, `list_select`, `modal`, `nav_minimap`, `props_form`, `sample_browser`, `scope`, `scroll_indicators`, `search_bar`, `section_header`, `sparkles`, `spectrum`, `text_input`, `vu_meter`, `waveform`
+
+## Theme System
+
+The `theme/` module provides a palette-based theming system using Oklab color space.
+
+| Module | Description |
+|--------|-------------|
+| `mod` | `THEMES` array, `CURRENT_THEME` thread-local, `get()`/`set()` |
+| `palette` | `Palette` (14 fields), color manipulation helpers (`shift`, `mix`, `tint_bg`, ...) |
+| `build` | Derives ~190 `ThemeColors` fields from a `Palette` |
+| `transform` | HSV-based hue rotation for generated palettes |
+
+25 built-in themes.
+
+## Key Types
+
+- **`Palette`** — 14-field color definition, input to theme generation
+- **`ThemeColors`** — ~190 derived semantic colors used throughout the UI

crates/ratatui/src/category_list.rs

@@ -0,0 +1,189 @@
+//! Collapsible categorized list widget with section headers.
+
+use ratatui::layout::Rect;
+use ratatui::style::{Color, Modifier, Style};
+use ratatui::widgets::{Block, Borders, List, ListItem};
+use ratatui::Frame;
+
+use crate::theme;
+
+/// Entry in a category list: either a section header or a leaf item.
+pub struct CategoryItem<'a> {
+    pub label: &'a str,
+    pub is_section: bool,
+    pub collapsed: bool,
+}
+
+/// What is currently selected: a leaf item or a section header.
+pub enum Selection {
+    Item(usize),
+    Section(usize),
+}
+
+/// Scrollable list with collapsible section headers.
+pub struct CategoryList<'a> {
+    items: &'a [CategoryItem<'a>],
+    selection: Selection,
+    focused: bool,
+    title: &'a str,
+    section_color: Color,
+    focused_color: Color,
+    selected_color: Color,
+    normal_color: Color,
+    dimmed_color: Option<Color>,
+}
+
+impl<'a> CategoryList<'a> {
+    pub fn new(items: &'a [CategoryItem<'a>], selection: Selection) -> Self {
+        let theme = theme::get();
+        Self {
+            items,
+            selection,
+            focused: false,
+            title: "",
+            section_color: theme.ui.text_dim,
+            focused_color: theme.dict.category_focused,
+            selected_color: theme.dict.category_selected,
+            normal_color: theme.dict.category_normal,
+            dimmed_color: None,
+        }
+    }
+
+    pub fn focused(mut self, focused: bool) -> Self {
+        self.focused = focused;
+        self
+    }
+
+    pub fn title(mut self, title: &'a str) -> Self {
+        self.title = title;
+        self
+    }
+
+    pub fn selected_color(mut self, color: Color) -> Self {
+        self.selected_color = color;
+        self
+    }
+
+    pub fn normal_color(mut self, color: Color) -> Self {
+        self.normal_color = color;
+        self
+    }
+
+    pub fn dimmed(mut self, color: Color) -> Self {
+        self.dimmed_color = Some(color);
+        self
+    }
+
+    /// Build the visible items list, filtering out children of collapsed sections.
+    /// Returns (item, section_index_if_section, item_index_if_item).
+    fn visible_items(&self) -> Vec<(&CategoryItem<'a>, Option<usize>, Option<usize>)> {
+        let mut result = Vec::new();
+        let mut skipping = false;
+        let mut section_idx = 0usize;
+        let mut item_idx = 0usize;
+        for item in self.items.iter() {
+            if item.is_section {
+                skipping = item.collapsed;
+                result.push((item, Some(section_idx), None));
+                section_idx += 1;
+            } else if !skipping {
+                result.push((item, None, Some(item_idx)));
+                item_idx += 1;
+            } else {
+                item_idx += 1;
+            }
+        }
+        result
+    }
+
+    pub fn render(self, frame: &mut Frame, area: Rect) {
+        let theme = theme::get();
+        let visible = self.visible_items();
+
+        let visible_height = area.height.saturating_sub(2) as usize;
+        let total_items = visible.len();
+
+        let selected_visual_idx = match &self.selection {
+            Selection::Item(sel) => visible
+                .iter()
+                .position(|(_, _, item_idx)| *item_idx == Some(*sel))
+                .unwrap_or(0),
+            Selection::Section(sel) => visible
+                .iter()
+                .position(|(_, sec_idx, _)| *sec_idx == Some(*sel))
+                .unwrap_or(0),
+        };
+
+        let scroll = if selected_visual_idx < visible_height / 2 {
+            0
+        } else if selected_visual_idx > total_items.saturating_sub(visible_height / 2) {
+            total_items.saturating_sub(visible_height)
+        } else {
+            selected_visual_idx.saturating_sub(visible_height / 2)
+        };
+
+        let is_dimmed = self.dimmed_color.is_some();
+
+        let items: Vec<ListItem> = visible
+            .iter()
+            .skip(scroll)
+            .take(visible_height)
+            .enumerate()
+            .map(|(vis_offset, (item, sec_idx, _itm_idx))| {
+                let visual_pos = scroll + vis_offset;
+                if item.is_section {
+                    let is_selected =
+                        matches!(&self.selection, Selection::Section(s) if Some(*s) == *sec_idx);
+                    let arrow = if item.collapsed { "▸" } else { "▾" };
+                    let style = if is_selected && self.focused {
+                        Style::new()
+                            .fg(self.focused_color)
+                            .add_modifier(Modifier::BOLD)
+                    } else if is_selected {
+                        Style::new()
+                            .fg(self.selected_color)
+                            .add_modifier(Modifier::BOLD)
+                    } else {
+                        Style::new().fg(self.section_color)
+                    };
+                    let prefix = if is_selected && !is_dimmed { "> " } else { "" };
+                    ListItem::new(format!("{prefix}{arrow} {}", item.label)).style(style)
+                } else {
+                    let is_selected = visual_pos == selected_visual_idx
+                        && matches!(&self.selection, Selection::Item(_));
+                    let style = if let Some(dim_color) = self.dimmed_color {
+                        Style::new().fg(dim_color)
+                    } else if is_selected && self.focused {
+                        Style::new()
+                            .fg(self.focused_color)
+                            .add_modifier(Modifier::BOLD)
+                    } else if is_selected {
+                        Style::new()
+                            .fg(self.selected_color)
+                            .add_modifier(Modifier::BOLD)
+                    } else {
+                        Style::new().fg(self.normal_color)
+                    };
+                    let prefix = if is_selected && !is_dimmed {
+                        "> "
+                    } else {
+                        "  "
+                    };
+                    ListItem::new(format!("{prefix}{}", item.label)).style(style)
+                }
+            })
+            .collect();
+
+        let border_color = if self.focused {
+            theme.dict.border_focused
+        } else {
+            theme.dict.border_normal
+        };
+        let block = Block::default()
+            .borders(Borders::ALL)
+            .border_style(Style::new().fg(border_color))
+            .title(self.title);
+        let list = List::new(items).block(block);
+        frame.render_widget(list, area);
+    }
+}

crates/ratatui/src/confirm.rs

@@ -1,11 +1,15 @@
+//! Yes/No confirmation dialog widget.
+
+use crate::theme;
 use ratatui::layout::{Alignment, Constraint, Layout, Rect};
-use ratatui::style::{Color, Style};
+use ratatui::style::Style;
 use ratatui::text::{Line, Span};
 use ratatui::widgets::Paragraph;
 use ratatui::Frame;
 
 use super::ModalFrame;
 
+/// Modal dialog with Yes/No buttons.
 pub struct ConfirmModal<'a> {
     title: &'a str,
     message: &'a str,
@@ -21,11 +25,12 @@ impl<'a> ConfirmModal<'a> {
         }
     }
 
-    pub fn render_centered(self, frame: &mut Frame, term: Rect) {
+    pub fn render_centered(self, frame: &mut Frame, term: Rect) -> Rect {
+        let t = theme::get();
         let inner = ModalFrame::new(self.title)
             .width(30)
             .height(5)
-            .border_color(Color::Yellow)
+            .border_color(t.confirm.border)
             .render_centered(frame, term);
 
         let rows = Layout::vertical([Constraint::Length(1), Constraint::Length(1)]).split(inner);
@@ -36,12 +41,12 @@ impl<'a> ConfirmModal<'a> {
         );
 
         let yes_style = if self.selected {
-            Style::new().fg(Color::Black).bg(Color::Yellow)
+            Style::new().fg(t.confirm.button_selected_fg).bg(t.confirm.button_selected_bg)
         } else {
             Style::default()
         };
         let no_style = if !self.selected {
-            Style::new().fg(Color::Black).bg(Color::Yellow)
+            Style::new().fg(t.confirm.button_selected_fg).bg(t.confirm.button_selected_bg)
         } else {
             Style::default()
         };
@@ -56,5 +61,7 @@ impl<'a> ConfirmModal<'a> {
             Paragraph::new(buttons).alignment(Alignment::Center),
             rows[1],
         );
+
+        inner
     }
 }

crates/ratatui/src/editor.rs

@@ -0,0 +1,759 @@
+//! Script editor widget with completion, search, and sample finder popups.
+
+use std::cell::Cell;
+use std::sync::Arc;
+
+use crate::theme;
+use ratatui::{
+    layout::Rect,
+    style::{Modifier, Style},
+    text::{Line, Span},
+    widgets::{Clear, Paragraph},
+    Frame,
+};
+use tui_textarea::TextArea;
+
+/// Callback that syntax-highlights a single line, returning styled spans (bool = annotation).
+pub type Highlighter<'a> = &'a dyn Fn(usize, &str) -> Vec<(Style, String, bool)>;
+
+/// Metadata for a single autocomplete entry.
+#[derive(Clone)]
+pub struct CompletionCandidate {
+    pub name: String,
+    pub signature: String,
+    pub description: String,
+    pub example: String,
+}
+
+struct CompletionState {
+    candidates: Arc<[CompletionCandidate]>,
+    matches: Vec<usize>,
+    cursor: usize,
+    prefix: String,
+    prefix_start_col: usize,
+    active: bool,
+    enabled: bool,
+}
+
+impl CompletionState {
+    fn new() -> Self {
+        Self {
+            candidates: Arc::from([]),
+            matches: Vec::new(),
+            cursor: 0,
+            prefix: String::new(),
+            prefix_start_col: 0,
+            active: false,
+            enabled: true,
+        }
+    }
+}
+
+struct SampleFinderState {
+    query: String,
+    folders: Vec<String>,
+    matches: Vec<usize>,
+    cursor: usize,
+    active: bool,
+}
+
+impl SampleFinderState {
+    fn new() -> Self {
+        Self {
+            query: String::new(),
+            folders: Vec::new(),
+            matches: Vec::new(),
+            cursor: 0,
+            active: false,
+        }
+    }
+}
+
+struct SearchState {
+    query: String,
+    active: bool,
+}
+
+impl SearchState {
+    fn new() -> Self {
+        Self {
+            query: String::new(),
+            active: false,
+        }
+    }
+}
+
+/// Multi-line text editor backed by tui_textarea.
+pub struct Editor {
+    text: TextArea<'static>,
+    completion: CompletionState,
+    sample_finder: SampleFinderState,
+    search: SearchState,
+    scroll_offset: Cell<u16>,
+}
+
+impl Editor {
+    pub fn start_selection(&mut self) {
+        self.text.start_selection();
+    }
+
+    pub fn cancel_selection(&mut self) {
+        self.text.cancel_selection();
+    }
+
+    pub fn is_selecting(&self) -> bool {
+        self.text.is_selecting()
+    }
+
+    pub fn move_cursor_to(&mut self, row: u16, col: u16) {
+        self.text.move_cursor(tui_textarea::CursorMove::Jump(row, col));
+    }
+
+    pub fn scroll_offset(&self) -> u16 {
+        self.scroll_offset.get()
+    }
+
+    pub fn copy(&mut self) {
+        self.text.copy();
+    }
+
+    pub fn cut(&mut self) -> bool {
+        self.text.cut()
+    }
+
+    pub fn paste(&mut self) -> bool {
+        self.text.paste()
+    }
+
+    pub fn yank_text(&self) -> String {
+        self.text.yank_text()
+    }
+
+    pub fn set_yank_text(&mut self, text: impl Into<String>) {
+        self.text.set_yank_text(text);
+    }
+
+    pub fn select_all(&mut self) {
+        self.text.select_all();
+    }
+
+    pub fn selection_range(&self) -> Option<((usize, usize), (usize, usize))> {
+        self.text.selection_range()
+    }
+}
+
+impl Default for Editor {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl Editor {
+    pub fn new() -> Self {
+        Self {
+            text: TextArea::default(),
+            completion: CompletionState::new(),
+            sample_finder: SampleFinderState::new(),
+            search: SearchState::new(),
+            scroll_offset: Cell::new(0),
+        }
+    }
+
+    pub fn set_content(&mut self, lines: Vec<String>) {
+        let yank = self.text.yank_text();
+        self.text = TextArea::new(lines);
+        if !yank.is_empty() {
+            self.text.set_yank_text(yank);
+        }
+        self.completion.active = false;
+        self.sample_finder.active = false;
+        self.search.query.clear();
+        self.search.active = false;
+        self.scroll_offset.set(0);
+    }
+
+    pub fn set_candidates(&mut self, candidates: Arc<[CompletionCandidate]>) {
+        self.completion.candidates = candidates;
+    }
+
+    pub fn insert_str(&mut self, s: &str) {
+        self.text.insert_str(s);
+    }
+
+    pub fn content(&self) -> String {
+        self.text.lines().join("\n")
+    }
+
+    pub fn lines(&self) -> &[String] {
+        self.text.lines()
+    }
+
+    pub fn cursor(&self) -> (usize, usize) {
+        self.text.cursor()
+    }
+
+    pub fn completion_active(&self) -> bool {
+        self.completion.active
+    }
+
+    pub fn dismiss_completion(&mut self) {
+        self.completion.active = false;
+    }
+
+    pub fn completion_next(&mut self) {
+        if self.completion.cursor + 1 < self.completion.matches.len() {
+            self.completion.cursor += 1;
+        }
+    }
+
+    pub fn completion_prev(&mut self) {
+        if self.completion.cursor > 0 {
+            self.completion.cursor -= 1;
+        }
+    }
+
+    pub fn set_completion_enabled(&mut self, enabled: bool) {
+        self.completion.enabled = enabled;
+        if !enabled {
+            self.completion.active = false;
+        }
+    }
+
+    pub fn activate_search(&mut self) {
+        self.search.active = true;
+        self.completion.active = false;
+    }
+
+    pub fn search_active(&self) -> bool {
+        self.search.active
+    }
+
+    pub fn search_query(&self) -> &str {
+        &self.search.query
+    }
+
+    pub fn search_input(&mut self, c: char) {
+        self.search.query.push(c);
+        self.apply_search_pattern();
+    }
+
+    pub fn search_backspace(&mut self) {
+        self.search.query.pop();
+        self.apply_search_pattern();
+    }
+
+    pub fn search_confirm(&mut self) {
+        self.search.active = false;
+    }
+
+    pub fn search_clear(&mut self) {
+        self.search.query.clear();
+        self.search.active = false;
+        let _ = self.text.set_search_pattern("");
+    }
+
+    pub fn search_next(&mut self) -> bool {
+        if self.search.query.is_empty() {
+            return false;
+        }
+        self.text.search_forward(false)
+    }
+
+    pub fn search_prev(&mut self) -> bool {
+        if self.search.query.is_empty() {
+            return false;
+        }
+        self.text.search_back(false)
+    }
+
+    fn apply_search_pattern(&mut self) {
+        if self.search.query.is_empty() {
+            let _ = self.text.set_search_pattern("");
+        } else {
+            let pattern = format!("(?i){}", regex::escape(&self.search.query));
+            let _ = self.text.set_search_pattern(&pattern);
+        }
+    }
+
+    pub fn set_sample_folders(&mut self, folders: Vec<String>) {
+        self.sample_finder.folders = folders;
+    }
+
+    pub fn activate_sample_finder(&mut self) {
+        self.completion.active = false;
+        self.sample_finder.query.clear();
+        self.sample_finder.cursor = 0;
+        self.sample_finder.matches = (0..self.sample_finder.folders.len()).collect();
+        self.sample_finder.active = true;
+    }
+
+    pub fn dismiss_sample_finder(&mut self) {
+        self.sample_finder.active = false;
+    }
+
+    pub fn sample_finder_active(&self) -> bool {
+        self.sample_finder.active
+    }
+
+    pub fn sample_finder_input(&mut self, c: char) {
+        self.sample_finder.query.push(c);
+        self.update_sample_finder_matches();
+    }
+
+    pub fn sample_finder_backspace(&mut self) {
+        self.sample_finder.query.pop();
+        self.update_sample_finder_matches();
+    }
+
+    pub fn sample_finder_next(&mut self) {
+        if self.sample_finder.cursor + 1 < self.sample_finder.matches.len() {
+            self.sample_finder.cursor += 1;
+        }
+    }
+
+    pub fn sample_finder_prev(&mut self) {
+        if self.sample_finder.cursor > 0 {
+            self.sample_finder.cursor -= 1;
+        }
+    }
+
+    pub fn accept_sample_finder(&mut self) {
+        if self.sample_finder.matches.is_empty() {
+            self.sample_finder.active = false;
+            return;
+        }
+        let idx = self.sample_finder.matches[self.sample_finder.cursor];
+        let name = self.sample_finder.folders[idx].clone();
+        self.text.insert_str(&name);
+        self.sample_finder.active = false;
+    }
+
+    fn update_sample_finder_matches(&mut self) {
+        if self.sample_finder.query.is_empty() {
+            self.sample_finder.matches = (0..self.sample_finder.folders.len()).collect();
+        } else {
+            let mut scored: Vec<(usize, usize)> = self
+                .sample_finder
+                .folders
+                .iter()
+                .enumerate()
+                .filter_map(|(i, name)| fuzzy_match(&self.sample_finder.query, name).map(|s| (s, i)))
+                .collect();
+            scored.sort_by_key(|(score, _)| *score);
+            self.sample_finder.matches = scored.into_iter().map(|(_, i)| i).collect();
+        }
+        self.sample_finder.cursor = self
+            .sample_finder
+            .cursor
+            .min(self.sample_finder.matches.len().saturating_sub(1));
+    }
+
+    pub fn input(&mut self, input: impl Into<tui_textarea::Input>) {
+        let input: tui_textarea::Input = input.into();
+        let has_modifier = input.ctrl || input.alt;
+
+        if self.completion.active && !has_modifier {
+            match &input {
+                tui_textarea::Input { key: tui_textarea::Key::Tab, .. } => {
+                    self.accept_completion();
+                    return;
+                }
+                tui_textarea::Input { key: tui_textarea::Key::Esc, .. } => {
+                    self.completion.active = false;
+                    return;
+                }
+                tui_textarea::Input { key: tui_textarea::Key::Char(c), .. } => {
+                    if !is_word_char(*c) {
+                        self.completion.active = false;
+                    }
+                    self.text.input(input);
+                    self.update_completion();
+                    return;
+                }
+                _ => {
+                    self.completion.active = false;
+                }
+            }
+        }
+
+        self.text.input(input);
+        if !has_modifier {
+            self.update_completion();
+        }
+    }
+
+    fn update_completion(&mut self) {
+        if !self.completion.enabled || self.completion.candidates.is_empty() || self.sample_finder.active {
+            return;
+        }
+
+        let (row, col) = self.text.cursor();
+        let line = &self.text.lines()[row];
+
+        // col is a character index; convert to byte offset for slicing
+        let byte_col = line.char_indices()
+            .nth(col)
+            .map(|(i, _)| i)
+            .unwrap_or(line.len());
+
+        let prefix_start = line[..byte_col]
+            .char_indices()
+            .rev()
+            .take_while(|(_, c)| is_word_char(*c))
+            .last()
+            .map(|(i, _)| i)
+            .unwrap_or(byte_col);
+
+        let prefix = &line[prefix_start..byte_col];
+
+        if prefix.len() < 2 {
+            self.completion.active = false;
+            return;
+        }
+
+        let prefix_lower = prefix.to_lowercase();
+        let matches: Vec<usize> = self
+            .completion
+            .candidates
+            .iter()
+            .enumerate()
+            .filter(|(_, c)| c.name.to_lowercase().starts_with(&prefix_lower))
+            .map(|(i, _)| i)
+            .collect();
+
+        if matches.is_empty() {
+            self.completion.active = false;
+            return;
+        }
+
+        if matches.len() == 1
+            && self.completion.candidates[matches[0]].name.to_lowercase() == prefix_lower
+        {
+            self.completion.active = false;
+            return;
+        }
+
+        self.completion.prefix = prefix.to_string();
+        self.completion.prefix_start_col = prefix_start;
+        self.completion.matches = matches;
+        self.completion.cursor = self.completion.cursor.min(
+            self.completion.matches.len().saturating_sub(1),
+        );
+        self.completion.active = true;
+    }
+
+    fn accept_completion(&mut self) {
+        if self.completion.matches.is_empty() {
+            self.completion.active = false;
+            return;
+        }
+
+        let idx = self.completion.matches[self.completion.cursor];
+        let name = self.completion.candidates[idx].name.clone();
+        let prefix_len = self.completion.prefix.len();
+
+        for _ in 0..prefix_len {
+            self.text.delete_char();
+        }
+        self.text.insert_str(&name);
+
+        self.completion.active = false;
+    }
+
+    pub fn render(&self, frame: &mut Frame, area: Rect, highlighter: Highlighter) {
+        let t = theme::get();
+        let (cursor_row, cursor_col) = self.text.cursor();
+        let cursor_style = Style::default().bg(t.editor_widget.cursor_bg).fg(t.editor_widget.cursor_fg);
+        let selection_style = Style::default().bg(t.editor_widget.selection_bg);
+
+        let selection = self.text.selection_range();
+
+        let lines: Vec<Line> = self
+            .text
+            .lines()
+            .iter()
+            .enumerate()
+            .map(|(row, line)| {
+                let tokens = highlighter(row, line);
+                let mut spans: Vec<Span> = Vec::new();
+                let mut col = 0;
+
+                for (base_style, text, is_annotation) in tokens {
+                    for ch in text.chars() {
+                        let style = if is_annotation {
+                            base_style
+                        } else {
+                            let is_cursor = row == cursor_row && col == cursor_col;
+                            let is_selected = is_in_selection(row, col, selection);
+                            if is_cursor {
+                                cursor_style
+                            } else if is_selected {
+                                base_style.bg(selection_style.bg.expect("selection style has bg"))
+                            } else {
+                                base_style
+                            }
+                        };
+                        spans.push(Span::styled(ch.to_string(), style));
+                        if !is_annotation {
+                            col += 1;
+                        }
+                    }
+                }
+
+                if row == cursor_row && cursor_col >= col {
+                    spans.push(Span::styled(" ", cursor_style));
+                }
+
+                Line::from(spans)
+            })
+            .collect();
+
+        let viewport_height = area.height as usize;
+        let offset = self.scroll_offset.get() as usize;
+        let offset = if cursor_row < offset {
+            cursor_row
+        } else if cursor_row >= offset + viewport_height {
+            cursor_row - viewport_height + 1
+        } else {
+            offset
+        };
+        self.scroll_offset.set(offset as u16);
+
+        frame.render_widget(Paragraph::new(lines).scroll((offset as u16, 0)), area);
+
+        if self.sample_finder.active && !self.sample_finder.matches.is_empty() {
+            self.render_sample_finder(frame, area, cursor_row - offset);
+        } else if self.completion.active && !self.completion.matches.is_empty() {
+            self.render_completion(frame, area, cursor_row - offset);
+        }
+    }
+
+    fn render_completion(&self, frame: &mut Frame, editor_area: Rect, cursor_row: usize) {
+        let t = theme::get();
+        let max_visible: usize = 6;
+        let list_width: u16 = 18;
+        let doc_width: u16 = 40;
+        let total_width = list_width + doc_width;
+
+        let visible_count = self.completion.matches.len().min(max_visible);
+        let list_height = visible_count as u16;
+        let doc_height = 4u16;
+        let total_height = list_height.max(doc_height);
+
+        let popup_x = (editor_area.x + self.completion.prefix_start_col as u16)
+            .min(editor_area.x + editor_area.width.saturating_sub(total_width));
+
+        let below_y = editor_area.y + cursor_row as u16 + 1;
+        let popup_y = if below_y + total_height > editor_area.y + editor_area.height {
+            (editor_area.y + cursor_row as u16).saturating_sub(total_height)
+        } else {
+            below_y
+        };
+
+        let scroll_offset = if self.completion.cursor >= max_visible {
+            self.completion.cursor - max_visible + 1
+        } else {
+            0
+        };
+
+        // List panel
+        let list_area = Rect::new(popup_x, popup_y, list_width, total_height);
+        frame.render_widget(Clear, list_area);
+
+        let highlight_style = Style::default().fg(t.editor_widget.completion_selected).add_modifier(Modifier::BOLD);
+        let normal_style = Style::default().fg(t.editor_widget.completion_fg);
+        let bg_style = Style::default().bg(t.editor_widget.completion_bg);
+
+        let list_lines: Vec<Line> = (scroll_offset..scroll_offset + visible_count)
+            .map(|i| {
+                let idx = self.completion.matches[i];
+                let name = &self.completion.candidates[idx].name;
+                let style = if i == self.completion.cursor {
+                    highlight_style
+                } else {
+                    normal_style
+                };
+                let prefix = if i == self.completion.cursor { "> " } else { "  " };
+                let display = format!("{prefix}{name:<width$}", width = list_width as usize - 2);
+                Line::from(Span::styled(display, style.bg(t.editor_widget.completion_bg)))
+            })
+            .collect();
+
+        // Fill remaining height with empty bg lines
+        let mut all_list_lines = list_lines;
+        for _ in visible_count as u16..total_height {
+            all_list_lines.push(Line::from(Span::styled(
+                " ".repeat(list_width as usize),
+                bg_style,
+            )));
+        }
+
+        frame.render_widget(Paragraph::new(all_list_lines), list_area);
+
+        // Doc panel
+        let doc_area = Rect::new(popup_x + list_width, popup_y, doc_width, total_height);
+        frame.render_widget(Clear, doc_area);
+
+        let selected_idx = self.completion.matches[self.completion.cursor];
+        let candidate = &self.completion.candidates[selected_idx];
+
+        let name_style = Style::default()
+            .fg(t.editor_widget.completion_selected)
+            .add_modifier(Modifier::BOLD)
+            .bg(t.editor_widget.completion_bg);
+        let desc_style = Style::default()
+            .fg(t.editor_widget.completion_fg)
+            .bg(t.editor_widget.completion_bg);
+        let example_style = Style::default()
+            .fg(t.editor_widget.completion_example)
+            .bg(t.editor_widget.completion_bg);
+
+        let w = doc_width as usize;
+        let mut doc_lines: Vec<Line> = Vec::new();
+
+        let header = format!(" {} {}", candidate.name, candidate.signature);
+        doc_lines.push(Line::from(Span::styled(
+            format!("{header:<w$}"),
+            name_style,
+        )));
+
+        let desc = format!(" {}", candidate.description);
+        doc_lines.push(Line::from(Span::styled(
+            format!("{desc:<w$}"),
+            desc_style,
+        )));
+
+        doc_lines.push(Line::from(Span::styled(" ".repeat(w), bg_style)));
+
+        if !candidate.example.is_empty() {
+            let ex = format!(" {}", candidate.example);
+            doc_lines.push(Line::from(Span::styled(
+                format!("{ex:<w$}"),
+                example_style,
+            )));
+        }
+
+        for _ in doc_lines.len() as u16..total_height {
+            doc_lines.push(Line::from(Span::styled(" ".repeat(w), bg_style)));
+        }
+
+        frame.render_widget(Paragraph::new(doc_lines), doc_area);
+    }
+
+    fn render_sample_finder(&self, frame: &mut Frame, editor_area: Rect, cursor_row: usize) {
+        let t = theme::get();
+        let max_visible: usize = 8;
+        let width: u16 = 24;
+
+        let visible_count = self.sample_finder.matches.len().min(max_visible);
+        let total_height = visible_count as u16 + 1; // +1 for query line
+
+        let (_, cursor_col) = self.text.cursor();
+        let popup_x = (editor_area.x + cursor_col as u16)
+            .min(editor_area.x + editor_area.width.saturating_sub(width));
+
+        let below_y = editor_area.y + cursor_row as u16 + 1;
+        let popup_y = if below_y + total_height > editor_area.y + editor_area.height {
+            (editor_area.y + cursor_row as u16).saturating_sub(total_height)
+        } else {
+            below_y
+        };
+
+        let area = Rect::new(popup_x, popup_y, width, total_height);
+        frame.render_widget(Clear, area);
+
+        let bg_style = Style::default().bg(t.editor_widget.completion_bg);
+        let highlight_style = Style::default()
+            .fg(t.editor_widget.completion_selected)
+            .add_modifier(Modifier::BOLD);
+        let normal_style = Style::default().fg(t.editor_widget.completion_fg);
+
+        let w = width as usize;
+        let mut lines: Vec<Line> = Vec::new();
+
+        let query_display = format!("/{}", self.sample_finder.query);
+        lines.push(Line::from(Span::styled(
+            format!("{query_display:<w$}"),
+            highlight_style.bg(t.editor_widget.completion_bg),
+        )));
+
+        let scroll_offset = if self.sample_finder.cursor >= max_visible {
+            self.sample_finder.cursor - max_visible + 1
+        } else {
+            0
+        };
+
+        for i in scroll_offset..scroll_offset + visible_count {
+            let idx = self.sample_finder.matches[i];
+            let name = &self.sample_finder.folders[idx];
+            let style = if i == self.sample_finder.cursor {
+                highlight_style
+            } else {
+                normal_style
+            };
+            let prefix = if i == self.sample_finder.cursor { "> " } else { "  " };
+            let display = format!("{prefix}{name:<width$}", width = w - 2);
+            lines.push(Line::from(Span::styled(
+                format!("{display:<w$}"),
+                style.bg(t.editor_widget.completion_bg),
+            )));
+        }
+
+        // Fill rest with bg
+        for _ in lines.len() as u16..total_height {
+            lines.push(Line::from(Span::styled(" ".repeat(w), bg_style)));
+        }
+
+        frame.render_widget(Paragraph::new(lines), area);
+    }
+}
+
+/// Score a fuzzy match of `query` against `target`. Lower is better; `None` if no match.
+pub fn fuzzy_match(query: &str, target: &str) -> Option<usize> {
+    let target_lower: Vec<char> = target.to_lowercase().chars().collect();
+    let query_lower: Vec<char> = query.to_lowercase().chars().collect();
+    let mut ti = 0;
+    let mut score = 0;
+    let mut prev_pos = 0;
+    for (qi, &qc) in query_lower.iter().enumerate() {
+        loop {
+            if ti >= target_lower.len() {
+                return None;
+            }
+            if target_lower[ti] == qc {
+                if qi > 0 {
+                    score += ti - prev_pos;
+                }
+                prev_pos = ti;
+                ti += 1;
+                break;
+            }
+            ti += 1;
+        }
+    }
+    Some(score)
+}
+
+fn is_word_char(c: char) -> bool {
+    c.is_alphanumeric() || matches!(c, '!' | '@' | '?' | '.' | ':' | '_' | '#')
+}
+
+fn is_in_selection(row: usize, col: usize, selection: Option<((usize, usize), (usize, usize))>) -> bool {
+    let Some(((start_row, start_col), (end_row, end_col))) = selection else {
+        return false;
+    };
+
+    if row < start_row || row > end_row {
+        return false;
+    }
+
+    if row == start_row && row == end_row {
+        col >= start_col && col < end_col
+    } else if row == start_row {
+        col >= start_col
+    } else if row == end_row {
+        col < end_col
+    } else {
+        true
+    }
+}

crates/ratatui/src/file_browser.rs

@@ -0,0 +1,180 @@
+//! File/directory browser modal widget.
+
+use crate::theme;
+use ratatui::layout::{Constraint, Layout, Rect};
+use ratatui::style::{Color, Style};
+use ratatui::text::{Line, Span};
+use ratatui::widgets::Paragraph;
+use ratatui::Frame;
+
+use super::ModalFrame;
+
+/// Modal listing files and directories with a filter input line.
+pub struct FileBrowserModal<'a> {
+    title: &'a str,
+    input: &'a str,
+    entries: &'a [(String, bool, bool)],
+    audio_counts: &'a [Option<usize>],
+    selected: usize,
+    scroll_offset: usize,
+    border_color: Option<Color>,
+    width: u16,
+    height: u16,
+    hints: Option<Line<'a>>,
+    color_path: bool,
+}
+
+impl<'a> FileBrowserModal<'a> {
+    pub fn new(title: &'a str, input: &'a str, entries: &'a [(String, bool, bool)]) -> Self {
+        Self {
+            title,
+            input,
+            entries,
+            audio_counts: &[],
+            selected: 0,
+            scroll_offset: 0,
+            border_color: None,
+            width: 60,
+            height: 16,
+            hints: None,
+            color_path: false,
+        }
+    }
+
+    pub fn selected(mut self, idx: usize) -> Self {
+        self.selected = idx;
+        self
+    }
+
+    pub fn scroll_offset(mut self, offset: usize) -> Self {
+        self.scroll_offset = offset;
+        self
+    }
+
+    pub fn border_color(mut self, c: Color) -> Self {
+        self.border_color = Some(c);
+        self
+    }
+
+    pub fn width(mut self, w: u16) -> Self {
+        self.width = w;
+        self
+    }
+
+    pub fn height(mut self, h: u16) -> Self {
+        self.height = h;
+        self
+    }
+
+    pub fn hints(mut self, hints: Line<'a>) -> Self {
+        self.hints = Some(hints);
+        self
+    }
+
+    pub fn audio_counts(mut self, counts: &'a [Option<usize>]) -> Self {
+        self.audio_counts = counts;
+        self
+    }
+
+    pub fn color_path(mut self) -> Self {
+        self.color_path = true;
+        self
+    }
+
+    pub fn render_centered(self, frame: &mut Frame, term: Rect) -> Rect {
+        let colors = theme::get();
+        let border_color = self.border_color.unwrap_or(colors.ui.text_primary);
+
+        let inner = ModalFrame::new(self.title)
+            .width(self.width)
+            .height(self.height)
+            .border_color(border_color)
+            .render_centered(frame, term);
+
+        let has_hints = self.hints.is_some();
+        let constraints = if has_hints {
+            vec![
+                Constraint::Length(1),
+                Constraint::Min(1),
+                Constraint::Length(1),
+            ]
+        } else {
+            vec![Constraint::Length(1), Constraint::Min(1)]
+        };
+        let rows = Layout::vertical(constraints).split(inner);
+
+        // Input line
+        let input_spans = if self.color_path {
+            let (path_part, filter_part) = match self.input.rfind('/') {
+                Some(pos) => (&self.input[..=pos], &self.input[pos + 1..]),
+                None => ("", self.input),
+            };
+            vec![
+                Span::raw("> "),
+                Span::styled(path_part.to_string(), Style::new().fg(colors.browser.directory)),
+                Span::styled(filter_part.to_string(), Style::new().fg(colors.input.text)),
+                Span::styled("█", Style::new().fg(colors.input.cursor)),
+            ]
+        } else {
+            vec![
+                Span::raw("> "),
+                Span::styled(self.input, Style::new().fg(colors.input.text)),
+                Span::styled("█", Style::new().fg(colors.input.cursor)),
+            ]
+        };
+        frame.render_widget(Paragraph::new(Line::from(input_spans)), rows[0]);
+
+        // Hints bar
+        if let Some(hints) = self.hints {
+            let hint_row = rows[2];
+            frame.render_widget(
+                Paragraph::new(hints).alignment(ratatui::layout::Alignment::Right),
+                hint_row,
+            );
+        }
+
+        // Entries list
+        let visible_height = rows[1].height as usize;
+        let visible_entries = self
+            .entries
+            .iter()
+            .enumerate()
+            .skip(self.scroll_offset)
+            .take(visible_height);
+
+        let lines: Vec<Line> = visible_entries
+            .map(|(abs_idx, (name, is_dir, is_cagire))| {
+                let is_selected = abs_idx == self.selected;
+                let prefix = if is_selected { "> " } else { "  " };
+                let color = if is_selected {
+                    colors.browser.selected
+                } else if *is_dir {
+                    colors.browser.directory
+                } else if *is_cagire {
+                    colors.browser.project_file
+                } else {
+                    colors.browser.file
+                };
+                let display = if *is_dir {
+                    format!("{prefix}{name}/")
+                } else {
+                    format!("{prefix}{name}")
+                };
+                let mut spans = vec![Span::styled(display, Style::new().fg(color))];
+                if *is_dir && name != ".." {
+                    if let Some(Some(count)) = self.audio_counts.get(abs_idx) {
+                        spans.push(Span::styled(
+                            format!("  ({count})"),
+                            Style::new().fg(colors.browser.file),
+                        ));
+                    }
+                }
+                Line::from(spans)
+            })
+            .collect();
+
+        frame.render_widget(Paragraph::new(lines), rows[1]);
+
+        inner
+    }
+}

crates/ratatui/src/hint_bar.rs

@@ -0,0 +1,30 @@
+//! Bottom-bar keyboard hint renderer.
+
+use ratatui::text::{Line, Span};
+use ratatui::style::Style;
+
+use crate::theme;
+
+/// Build a styled line of key/action pairs for the hint bar.
+pub fn hint_line(pairs: &[(&str, &str)]) -> Line<'static> {
+    let theme = theme::get();
+    let key_style = Style::default().fg(theme.hint.key);
+    let text_style = Style::default().fg(theme.hint.text);
+
+    let spans: Vec<Span> = pairs
+        .iter()
+        .enumerate()
+        .flat_map(|(i, (key, action))| {
+            let mut s = vec![
+                Span::styled(key.to_string(), key_style),
+                Span::styled(format!(" {action}"), text_style),
+            ];
+            if i + 1 < pairs.len() {
+                s.push(Span::styled("  ", text_style));
+            }
+            s
+        })
+        .collect();
+
+    Line::from(spans)
+}

crates/ratatui/src/lib.rs

@@ -0,0 +1,44 @@
+//! Reusable TUI widgets for the Cagire sequencer interface.
+
+mod category_list;
+mod confirm;
+mod editor;
+mod file_browser;
+mod hint_bar;
+mod lissajous;
+mod list_select;
+mod modal;
+mod nav_minimap;
+mod props_form;
+mod sample_browser;
+mod scope;
+mod scroll_indicators;
+mod search_bar;
+mod section_header;
+mod sparkles;
+mod spectrum;
+mod text_input;
+pub mod theme;
+mod vu_meter;
+mod waveform;
+
+pub use category_list::{CategoryItem, CategoryList, Selection};
+pub use confirm::ConfirmModal;
+pub use editor::{fuzzy_match, CompletionCandidate, Editor};
+pub use file_browser::FileBrowserModal;
+pub use hint_bar::hint_line;
+pub use lissajous::Lissajous;
+pub use list_select::ListSelect;
+pub use modal::ModalFrame;
+pub use nav_minimap::{hit_test_tile, minimap_area, NavMinimap, NavTile};
+pub use props_form::render_props_form;
+pub use sample_browser::{SampleBrowser, TreeLine, TreeLineKind};
+pub use scope::{Orientation, Scope};
+pub use scroll_indicators::{render_scroll_indicators, IndicatorAlign};
+pub use search_bar::render_search_bar;
+pub use section_header::render_section_header;
+pub use sparkles::Sparkles;
+pub use spectrum::{Spectrum, SpectrumStyle};
+pub use text_input::TextInputModal;
+pub use vu_meter::VuMeter;
+pub use waveform::Waveform;

crates/ratatui/src/lissajous.rs

@@ -0,0 +1,234 @@
+//! Lissajous XY oscilloscope widget using braille characters.
+
+use crate::theme;
+use ratatui::buffer::Buffer;
+use ratatui::layout::Rect;
+use ratatui::style::Color;
+use ratatui::widgets::Widget;
+use std::cell::RefCell;
+
+thread_local! {
+    static PATTERNS: RefCell<Vec<u8>> = const { RefCell::new(Vec::new()) };
+    static TRAIL: RefCell<TrailState> = const { RefCell::new(TrailState { fine_w: 0, fine_h: 0, heat: Vec::new() }) };
+}
+
+struct TrailState {
+    fine_w: usize,
+    fine_h: usize,
+    heat: Vec<f32>,
+}
+
+/// XY oscilloscope plotting left vs right channels as a Lissajous curve.
+pub struct Lissajous<'a> {
+    left: &'a [f32],
+    right: &'a [f32],
+    color: Option<Color>,
+    gain: f32,
+    trails: bool,
+}
+
+impl<'a> Lissajous<'a> {
+    pub fn new(left: &'a [f32], right: &'a [f32]) -> Self {
+        Self {
+            left,
+            right,
+            color: None,
+            gain: 1.0,
+            trails: false,
+        }
+    }
+
+    pub fn trails(mut self, enabled: bool) -> Self {
+        self.trails = enabled;
+        self
+    }
+
+    pub fn color(mut self, c: Color) -> Self {
+        self.color = Some(c);
+        self
+    }
+
+    pub fn gain(mut self, g: f32) -> Self {
+        self.gain = g;
+        self
+    }
+}
+
+impl Widget for Lissajous<'_> {
+    fn render(self, area: Rect, buf: &mut Buffer) {
+        if area.width == 0 || area.height == 0 || self.left.is_empty() || self.right.is_empty() {
+            return;
+        }
+
+        if self.trails {
+            self.render_trails(area, buf);
+        } else {
+            self.render_normal(area, buf);
+        }
+    }
+}
+
+impl Lissajous<'_> {
+    fn render_normal(self, area: Rect, buf: &mut Buffer) {
+        let color = self.color.unwrap_or_else(|| theme::get().meter.low);
+        let width = area.width as usize;
+        let height = area.height as usize;
+        let fine_width = width * 2;
+        let fine_height = height * 4;
+        let len = self.left.len().min(self.right.len());
+
+        PATTERNS.with(|p| {
+            let mut patterns = p.borrow_mut();
+            let size = width * height;
+            patterns.clear();
+            patterns.resize(size, 0);
+
+            for i in 0..len {
+                let l = (self.left[i] * self.gain).clamp(-1.0, 1.0);
+                let r = (self.right[i] * self.gain).clamp(-1.0, 1.0);
+
+                let fine_x = ((r + 1.0) * 0.5 * (fine_width - 1) as f32).round() as usize;
+                let fine_y = ((1.0 - l) * 0.5 * (fine_height - 1) as f32).round() as usize;
+                let fine_x = fine_x.min(fine_width - 1);
+                let fine_y = fine_y.min(fine_height - 1);
+
+                let char_x = fine_x / 2;
+                let char_y = fine_y / 4;
+                let dot_x = fine_x % 2;
+                let dot_y = fine_y % 4;
+
+                patterns[char_y * width + char_x] |= braille_bit(dot_x, dot_y);
+            }
+
+            for cy in 0..height {
+                for cx in 0..width {
+                    let pattern = patterns[cy * width + cx];
+                    if pattern != 0 {
+                        let ch = char::from_u32(0x2800 + pattern as u32).unwrap_or(' ');
+                        buf[(area.x + cx as u16, area.y + cy as u16)]
+                            .set_char(ch)
+                            .set_fg(color);
+                    }
+                }
+            }
+        });
+    }
+
+    fn render_trails(self, area: Rect, buf: &mut Buffer) {
+        let theme = theme::get();
+        let width = area.width as usize;
+        let height = area.height as usize;
+        let fine_w = width * 2;
+        let fine_h = height * 4;
+        let len = self.left.len().min(self.right.len());
+
+        TRAIL.with(|t| {
+            let mut trail = t.borrow_mut();
+
+            // Reset if dimensions changed
+            if trail.fine_w != fine_w || trail.fine_h != fine_h {
+                trail.fine_w = fine_w;
+                trail.fine_h = fine_h;
+                trail.heat.clear();
+                trail.heat.resize(fine_w * fine_h, 0.0);
+            }
+
+            // Decay existing heat
+            for h in trail.heat.iter_mut() {
+                *h *= 0.85;
+            }
+
+            // Plot new sample points
+            for i in 0..len {
+                let l = (self.left[i] * self.gain).clamp(-1.0, 1.0);
+                let r = (self.right[i] * self.gain).clamp(-1.0, 1.0);
+
+                let fx = ((r + 1.0) * 0.5 * (fine_w - 1) as f32).round() as usize;
+                let fy = ((1.0 - l) * 0.5 * (fine_h - 1) as f32).round() as usize;
+                let fx = fx.min(fine_w - 1);
+                let fy = fy.min(fine_h - 1);
+
+                trail.heat[fy * fine_w + fx] = 1.0;
+            }
+
+            // Convert heat map to braille
+            PATTERNS.with(|p| {
+                let mut patterns = p.borrow_mut();
+                patterns.clear();
+                patterns.resize(width * height, 0);
+
+                // Track brightest color per cell
+                let mut colors: Vec<Option<Color>> = vec![None; width * height];
+
+                for fy in 0..fine_h {
+                    for fx in 0..fine_w {
+                        let h = trail.heat[fy * fine_w + fx];
+                        if h < 0.05 {
+                            continue;
+                        }
+
+                        let cx = fx / 2;
+                        let cy = fy / 4;
+                        let dx = fx % 2;
+                        let dy = fy % 4;
+
+                        let idx = cy * width + cx;
+                        patterns[idx] |= braille_bit(dx, dy);
+
+                        let dot_color = if h > 0.7 {
+                            theme.meter.high
+                        } else if h > 0.25 {
+                            theme.meter.mid
+                        } else {
+                            theme.meter.low
+                        };
+
+                        let replace = match colors[idx] {
+                            None => true,
+                            Some(cur) => {
+                                rank_color(dot_color, &theme) > rank_color(cur, &theme)
+                            }
+                        };
+                        if replace {
+                            colors[idx] = Some(dot_color);
+                        }
+                    }
+                }
+
+                for cy in 0..height {
+                    for cx in 0..width {
+                        let idx = cy * width + cx;
+                        let pattern = patterns[idx];
+                        if pattern != 0 {
+                            let ch = char::from_u32(0x2800 + pattern as u32).unwrap_or(' ');
+                            let color = colors[idx].unwrap_or(theme.meter.low);
+                            buf[(area.x + cx as u16, area.y + cy as u16)]
+                                .set_char(ch)
+                                .set_fg(color);
+                        }
+                    }
+                }
+            });
+        });
+    }
+}
+
+fn braille_bit(dot_x: usize, dot_y: usize) -> u8 {
+    match (dot_x, dot_y) {
+        (0, 0) => 0x01,
+        (0, 1) => 0x02,
+        (0, 2) => 0x04,
+        (0, 3) => 0x40,
+        (1, 0) => 0x08,
+        (1, 1) => 0x10,
+        (1, 2) => 0x20,
+        (1, 3) => 0x80,
+        _ => unreachable!(),
+    }
+}
+
+fn rank_color(c: Color, theme: &crate::theme::ThemeColors) -> u8 {
+    if c == theme.meter.high { 2 }
+    else if c == theme.meter.mid { 1 }
+    else { 0 }
+}

crates/ratatui/src/list_select.rs

@@ -0,0 +1,108 @@
+//! Scrollable single-select list widget with cursor highlight.
+
+use crate::theme;
+use ratatui::layout::Rect;
+use ratatui::style::{Modifier, Style};
+use ratatui::text::{Line, Span};
+use ratatui::widgets::Paragraph;
+use ratatui::Frame;
+
+/// Scrollable list with a highlighted cursor and selected-item marker.
+pub struct ListSelect<'a> {
+    items: &'a [String],
+    selected: usize,
+    cursor: usize,
+    focused: bool,
+    visible_count: usize,
+    scroll_offset: usize,
+}
+
+impl<'a> ListSelect<'a> {
+    pub fn new(items: &'a [String], selected: usize, cursor: usize) -> Self {
+        Self {
+            items,
+            selected,
+            cursor,
+            focused: false,
+            visible_count: 5,
+            scroll_offset: 0,
+        }
+    }
+
+    pub fn focused(mut self, focused: bool) -> Self {
+        self.focused = focused;
+        self
+    }
+
+    pub fn scroll_offset(mut self, offset: usize) -> Self {
+        self.scroll_offset = offset;
+        self
+    }
+
+    pub fn visible_count(mut self, n: usize) -> Self {
+        self.visible_count = n;
+        self
+    }
+
+    pub fn height(&self) -> u16 {
+        let item_lines = self.items.len().min(self.visible_count) as u16;
+        if self.items.len() > self.visible_count {
+            item_lines + 1
+        } else {
+            item_lines
+        }
+    }
+
+    pub fn render(self, frame: &mut Frame, area: Rect) {
+        let colors = theme::get();
+        let cursor_style = Style::new().fg(colors.hint.key).add_modifier(Modifier::BOLD);
+        let selected_style = Style::new().fg(colors.ui.accent);
+        let normal_style = Style::default();
+        let indicator_style = Style::new().fg(colors.ui.text_dim);
+
+        let visible_end = (self.scroll_offset + self.visible_count).min(self.items.len());
+        let has_above = self.scroll_offset > 0;
+        let has_below = visible_end < self.items.len();
+
+        let mut lines: Vec<Line> = Vec::new();
+
+        for i in self.scroll_offset..visible_end {
+            let name = &self.items[i];
+            let is_cursor = self.focused && i == self.cursor;
+            let is_selected = i == self.selected;
+
+            let style = if is_cursor {
+                cursor_style
+            } else if is_selected {
+                selected_style
+            } else {
+                normal_style
+            };
+
+            let prefix = if is_selected { "x " } else { "  " };
+            let mut spans = vec![
+                Span::styled(prefix.to_string(), style),
+                Span::styled(name.clone(), style),
+            ];
+
+            if has_above && i == self.scroll_offset {
+                spans.push(Span::styled(" ▲", indicator_style));
+            } else if has_below && i == visible_end - 1 {
+                spans.push(Span::styled(" ▼", indicator_style));
+            }
+
+            lines.push(Line::from(spans));
+        }
+
+        if self.items.len() > self.visible_count {
+            let position = self.cursor + 1;
+            let total = self.items.len();
+            lines.push(Line::from(Span::styled(
+                format!("  ({position}/{total})"),
+                indicator_style,
+            )));
+        }
+
+        frame.render_widget(Paragraph::new(lines), area);
+    }
+}

crates/ratatui/src/modal.rs

@@ -1,13 +1,17 @@
+//! Centered modal frame with border and title.
+
+use crate::theme;
 use ratatui::layout::Rect;
 use ratatui::style::{Color, Style};
-use ratatui::widgets::{Block, Borders, Clear};
+use ratatui::widgets::{Block, Borders, Clear, Paragraph};
 use ratatui::Frame;
 
+/// Centered modal overlay with titled border.
 pub struct ModalFrame<'a> {
     title: &'a str,
     width: u16,
     height: u16,
-    border_color: Color,
+    border_color: Option<Color>,
 }
 
 impl<'a> ModalFrame<'a> {
@@ -16,7 +20,7 @@ impl<'a> ModalFrame<'a> {
             title,
             width: 40,
             height: 5,
-            border_color: Color::White,
+            border_color: None,
         }
     }
 
@@ -31,11 +35,12 @@ impl<'a> ModalFrame<'a> {
     }
 
     pub fn border_color(mut self, c: Color) -> Self {
-        self.border_color = c;
+        self.border_color = Some(c);
         self
     }
 
     pub fn render_centered(&self, frame: &mut Frame, term: Rect) -> Rect {
+        let t = theme::get();
         let width = self.width.min(term.width.saturating_sub(4));
         let height = self.height.min(term.height.saturating_sub(4));
 
@@ -45,10 +50,21 @@ impl<'a> ModalFrame<'a> {
 
         frame.render_widget(Clear, area);
 
+        // Fill background with theme color
+        let bg_fill = " ".repeat(area.width as usize);
+        for row in 0..area.height {
+            let line_area = Rect::new(area.x, area.y + row, area.width, 1);
+            frame.render_widget(
+                Paragraph::new(bg_fill.clone()).style(Style::new().bg(t.ui.bg)),
+                line_area,
+            );
+        }
+
+        let border_color = self.border_color.unwrap_or(t.ui.text_primary);
         let block = Block::default()
             .borders(Borders::ALL)
             .title(self.title)
-            .border_style(Style::new().fg(self.border_color));
+            .border_style(Style::new().fg(border_color));
 
         let inner = block.inner(area);
         frame.render_widget(block, area);

crates/ratatui/src/nav_minimap.rs

@@ -0,0 +1,119 @@
+//! Page navigation minimap showing a 3x2 grid of tiles.
+
+use crate::theme;
+use ratatui::layout::{Alignment, Rect};
+use ratatui::style::Style;
+use ratatui::widgets::{Clear, Paragraph};
+use ratatui::Frame;
+
+const TILE_W: u16 = 12;
+const TILE_H: u16 = 3;
+const GAP: u16 = 1;
+const PAD: u16 = 2;
+const GRID_COLS: u16 = 3;
+const GRID_ROWS: u16 = 2;
+
+/// Compute the centered minimap area for a 3x2 grid.
+pub fn minimap_area(term: Rect) -> Rect {
+    let content_w = TILE_W * GRID_COLS + GAP * (GRID_COLS - 1);
+    let content_h = TILE_H * GRID_ROWS + GAP * (GRID_ROWS - 1);
+    let modal_w = content_w + PAD * 2;
+    let modal_h = content_h + PAD * 2;
+    let x = term.x + (term.width.saturating_sub(modal_w)) / 2;
+    let y = term.y + (term.height.saturating_sub(modal_h)) / 2;
+    Rect::new(x, y, modal_w, modal_h)
+}
+
+/// Hit-test: returns `(grid_col, grid_row)` if the click lands on a tile.
+pub fn hit_test_tile(col: u16, row: u16, term: Rect) -> Option<(i8, i8)> {
+    let area = minimap_area(term);
+    let inner_x = area.x + PAD;
+    let inner_y = area.y + PAD;
+
+    for grid_row in 0..GRID_ROWS {
+        for grid_col in 0..GRID_COLS {
+            let tx = inner_x + grid_col * (TILE_W + GAP);
+            let ty = inner_y + grid_row * (TILE_H + GAP);
+            if col >= tx && col < tx + TILE_W && row >= ty && row < ty + TILE_H {
+                return Some((grid_col as i8, grid_row as i8));
+            }
+        }
+    }
+    None
+}
+
+/// A tile in the navigation grid
+pub struct NavTile {
+    pub col: i8,
+    pub row: i8,
+    pub name: &'static str,
+}
+
+/// Navigation minimap widget that renders a grid of page tiles
+pub struct NavMinimap<'a> {
+    tiles: &'a [NavTile],
+    selected: (i8, i8),
+}
+
+impl<'a> NavMinimap<'a> {
+    pub fn new(tiles: &'a [NavTile], selected: (i8, i8)) -> Self {
+        Self { tiles, selected }
+    }
+
+    pub fn render_centered(self, frame: &mut Frame, term: Rect) {
+        if self.tiles.is_empty() {
+            return;
+        }
+
+        let area = minimap_area(term);
+
+        frame.render_widget(Clear, area);
+
+        // Fill background with theme color
+        let t = theme::get();
+        let bg_fill = " ".repeat(area.width as usize);
+        for row in 0..area.height {
+            let line_area = Rect::new(area.x, area.y + row, area.width, 1);
+            frame.render_widget(
+                Paragraph::new(bg_fill.clone()).style(Style::new().bg(t.ui.bg)),
+                line_area,
+            );
+        }
+
+        let inner_x = area.x + PAD;
+        let inner_y = area.y + PAD;
+
+        for tile in self.tiles {
+            let tile_x = inner_x + (tile.col as u16) * (TILE_W + GAP);
+            let tile_y = inner_y + (tile.row as u16) * (TILE_H + GAP);
+            let tile_area = Rect::new(tile_x, tile_y, TILE_W, TILE_H);
+            let is_selected = (tile.col, tile.row) == self.selected;
+            self.render_tile(frame, tile_area, tile.name, is_selected);
+        }
+    }
+
+    fn render_tile(&self, frame: &mut Frame, area: Rect, label: &str, is_selected: bool) {
+        let t = theme::get();
+        let (bg, fg) = if is_selected {
+            (t.nav.selected_bg, t.nav.selected_fg)
+        } else {
+            (t.nav.unselected_bg, t.nav.unselected_fg)
+        };
+
+        // Fill background
+        for row in 0..area.height {
+            let line_area = Rect::new(area.x, area.y + row, area.width, 1);
+            let fill = " ".repeat(area.width as usize);
+            frame.render_widget(Paragraph::new(fill).style(Style::new().bg(bg)), line_area);
+        }
+
+        // Center text vertically
+        let text_y = area.y + area.height / 2;
+        let text_area = Rect::new(area.x, text_y, area.width, 1);
+        let paragraph = Paragraph::new(label)
+            .style(Style::new().bg(bg).fg(fg))
+            .alignment(Alignment::Center);
+
+        frame.render_widget(paragraph, text_area);
+    }
+}

crates/ratatui/src/props_form.rs

@@ -0,0 +1,45 @@
+//! Vertical label/value property form renderer.
+
+use ratatui::layout::Rect;
+use ratatui::style::{Modifier, Style};
+use ratatui::widgets::Paragraph;
+use ratatui::Frame;
+
+use crate::theme;
+
+/// Render a vertical list of label/value pairs with selection highlight.
+pub fn render_props_form(frame: &mut Frame, area: Rect, fields: &[(&str, &str, bool)]) {
+    let theme = theme::get();
+
+    for (i, (label, value, selected)) in fields.iter().enumerate() {
+        let y = area.y + i as u16;
+        if y >= area.y + area.height {
+            break;
+        }
+
+        let (label_style, value_style) = if *selected {
+            (
+                Style::default()
+                    .fg(theme.hint.key)
+                    .add_modifier(Modifier::BOLD),
+                Style::default()
+                    .fg(theme.ui.text_primary)
+                    .bg(theme.ui.surface),
+            )
+        } else {
+            (
+                Style::default().fg(theme.ui.text_muted),
+                Style::default().fg(theme.ui.text_primary),
+            )
+        };
+
+        let label_area = Rect::new(area.x + 1, y, 14, 1);
+        let value_area = Rect::new(area.x + 16, y, area.width.saturating_sub(18), 1);
+
+        frame.render_widget(
+            Paragraph::new(format!("{label}:")).style(label_style),
+            label_area,
+        );
+        frame.render_widget(Paragraph::new(*value).style(value_style), value_area);
+    }
+}

crates/ratatui/src/sample_browser.rs

@@ -0,0 +1,254 @@
+//! Tree-view sample browser with search filtering.
+
+use crate::theme;
+use ratatui::layout::{Constraint, Layout, Rect};
+use ratatui::style::{Modifier, Style};
+use ratatui::text::{Line, Span};
+use ratatui::widgets::{Block, Borders, Paragraph, Wrap};
+use ratatui::Frame;
+
+/// Node type in the sample tree.
+#[derive(Clone, Copy)]
+pub enum TreeLineKind {
+    Root { expanded: bool },
+    Folder { expanded: bool },
+    File,
+}
+
+/// A single row in the sample browser tree.
+#[derive(Clone)]
+pub struct TreeLine {
+    pub depth: u8,
+    pub kind: TreeLineKind,
+    pub label: String,
+    pub folder: String,
+    pub index: usize,
+    pub child_count: usize,
+}
+
+/// Tree-view browser for navigating sample folders.
+pub struct SampleBrowser<'a> {
+    entries: &'a [TreeLine],
+    cursor: usize,
+    scroll_offset: usize,
+    search_query: &'a str,
+    search_active: bool,
+    focused: bool,
+}
+
+impl<'a> SampleBrowser<'a> {
+    pub fn new(entries: &'a [TreeLine], cursor: usize) -> Self {
+        Self {
+            entries,
+            cursor,
+            scroll_offset: 0,
+            search_query: "",
+            search_active: false,
+            focused: false,
+        }
+    }
+
+    pub fn scroll_offset(mut self, offset: usize) -> Self {
+        self.scroll_offset = offset;
+        self
+    }
+
+    pub fn search(mut self, query: &'a str, active: bool) -> Self {
+        self.search_query = query;
+        self.search_active = active;
+        self
+    }
+
+    pub fn focused(mut self, focused: bool) -> Self {
+        self.focused = focused;
+        self
+    }
+
+    pub fn render(self, frame: &mut Frame, area: Rect) {
+        let colors = theme::get();
+        let border_style = if self.focused {
+            Style::new().fg(colors.browser.focused_border)
+        } else {
+            Style::new().fg(colors.browser.unfocused_border)
+        };
+
+        let block = Block::default()
+            .borders(Borders::ALL)
+            .border_style(border_style)
+            .title(" Samples ");
+
+        let inner = block.inner(area);
+        frame.render_widget(block, area);
+
+        if inner.height == 0 || inner.width == 0 {
+            return;
+        }
+
+        let show_search = self.search_active || !self.search_query.is_empty();
+        let (search_area, list_area) = if show_search {
+            let [s, l] = Layout::vertical([
+                Constraint::Length(1),
+                Constraint::Fill(1),
+            ])
+            .areas(inner);
+            (Some(s), l)
+        } else {
+            (None, inner)
+        };
+
+        if let Some(sa) = search_area {
+            self.render_search(frame, sa, &colors);
+        }
+        self.render_tree(frame, list_area, &colors);
+    }
+
+    fn render_search(&self, frame: &mut Frame, area: Rect, colors: &theme::ThemeColors) {
+        let style = if self.search_active {
+            Style::new().fg(colors.search.active)
+        } else {
+            Style::new().fg(colors.search.inactive)
+        };
+        let cursor = if self.search_active { "_" } else { "" };
+        let text = format!("/{}{}", self.search_query, cursor);
+        let line = Line::from(Span::styled(text, style));
+        frame.render_widget(Paragraph::new(vec![line]), area);
+    }
+
+    fn render_tree(&self, frame: &mut Frame, area: Rect, colors: &theme::ThemeColors) {
+        let height = area.height as usize;
+        if self.entries.is_empty() {
+            if self.search_query.is_empty() {
+                self.render_empty_guide(frame, area, colors);
+            } else {
+                let line =
+                    Line::from(Span::styled("No matches", Style::new().fg(colors.browser.empty_text)));
+                frame.render_widget(Paragraph::new(vec![line]), area);
+            }
+            return;
+        }
+
+        let visible_end = (self.scroll_offset + height).min(self.entries.len());
+        let mut lines: Vec<Line> = Vec::with_capacity(height);
+
+        for i in self.scroll_offset..visible_end {
+            let entry = &self.entries[i];
+            let is_cursor = i == self.cursor;
+            let indent = "  ".repeat(entry.depth as usize);
+
+            let (icon, icon_color) = match entry.kind {
+                TreeLineKind::Root { expanded: true } | TreeLineKind::Folder { expanded: true } => {
+                    ("\u{2212} ", colors.browser.folder_icon)
+                }
+                TreeLineKind::Root { expanded: false }
+                | TreeLineKind::Folder { expanded: false } => ("+ ", colors.browser.folder_icon),
+                TreeLineKind::File => ("\u{266A} ", colors.browser.file_icon),
+            };
+
+            let label_style = if is_cursor && self.focused {
+                Style::new().fg(colors.browser.selected).add_modifier(Modifier::BOLD)
+            } else if is_cursor {
+                Style::new().fg(colors.browser.file)
+            } else {
+                match entry.kind {
+                    TreeLineKind::Root { .. } => {
+                        Style::new().fg(colors.browser.root).add_modifier(Modifier::BOLD)
+                    }
+                    TreeLineKind::Folder { .. } => Style::new().fg(colors.browser.directory),
+                    TreeLineKind::File => Style::default(),
+                }
+            };
+
+            let icon_style = if is_cursor && self.focused {
+                label_style
+            } else {
+                Style::new().fg(icon_color)
+            };
+
+            let prefix_width = indent.len() + 2; // indent + icon
+            let suffix = match entry.kind {
+                TreeLineKind::File => format!(" {}", entry.index),
+                TreeLineKind::Root { expanded: false }
+                | TreeLineKind::Folder { expanded: false }
+                    if entry.child_count > 0 =>
+                {
+                    format!("  ({})", entry.child_count)
+                }
+                _ => String::new(),
+            };
+            let max_label = (area.width as usize)
+                .saturating_sub(prefix_width)
+                .saturating_sub(suffix.len());
+            let label: std::borrow::Cow<str> = if entry.label.len() > max_label && max_label > 1 {
+                let truncated: String = entry.label.chars().take(max_label - 1).collect();
+                format!("{}\u{2026}", truncated).into()
+            } else {
+                (&entry.label).into()
+            };
+
+            let mut spans = vec![
+                Span::raw(indent),
+                Span::styled(icon, icon_style),
+                Span::styled(label, label_style),
+            ];
+
+            match entry.kind {
+                TreeLineKind::File => {
+                    let idx_style = Style::new().fg(colors.browser.empty_text);
+                    spans.push(Span::styled(suffix, idx_style));
+                }
+                _ if !suffix.is_empty() => {
+                    let dim_style = Style::new().fg(colors.browser.empty_text);
+                    spans.push(Span::styled(suffix, dim_style));
+                }
+                _ => {}
+            }
+
+            lines.push(Line::from(spans));
+        }
+
+        frame.render_widget(Paragraph::new(lines), area);
+    }
+
+    fn render_empty_guide(&self, frame: &mut Frame, area: Rect, colors: &theme::ThemeColors) {
+        let muted = Style::new().fg(colors.browser.empty_text);
+        let heading = Style::new().fg(colors.ui.text_primary);
+        let key = Style::new().fg(colors.hint.key);
+        let desc = Style::new().fg(colors.hint.text);
+        let code = Style::new().fg(colors.ui.accent);
+
+        let lines = vec![
+            Line::from(Span::styled(" No samples loaded.", muted)),
+            Line::from(""),
+            Line::from(Span::styled(" Load from the Engine page:", heading)),
+            Line::from(""),
+            Line::from(vec![
+                Span::styled("   F6  ", key),
+                Span::styled("Go to Engine page", desc),
+            ]),
+            Line::from(vec![
+                Span::styled("    A  ", key),
+                Span::styled("Add a sample folder", desc),
+            ]),
+            Line::from(""),
+            Line::from(Span::styled(" Organize samples like this:", heading)),
+            Line::from(""),
+            Line::from(Span::styled("   samples/", code)),
+            Line::from(Span::styled("   \u{251C}\u{2500}\u{2500} kick/", code)),
+            Line::from(Span::styled("   \u{2502}   \u{2514}\u{2500}\u{2500} kick.wav", code)),
+            Line::from(Span::styled("   \u{251C}\u{2500}\u{2500} snare/", code)),
+            Line::from(Span::styled("   \u{2502}   \u{2514}\u{2500}\u{2500} snare.wav", code)),
+            Line::from(Span::styled("   \u{2514}\u{2500}\u{2500} hats/", code)),
+            Line::from(Span::styled("       \u{251C}\u{2500}\u{2500} closed.wav", code)),
+            Line::from(Span::styled("       \u{251C}\u{2500}\u{2500} open.wav", code)),
+            Line::from(Span::styled("       \u{2514}\u{2500}\u{2500} pedal.wav", code)),
+            Line::from(""),
+            Line::from(Span::styled(" Folders become Forth words:", heading)),
+            Line::from(""),
+            Line::from(Span::styled("   kick sound .", code)),
+            Line::from(Span::styled("   hats sound 2 n .", code)),
+            Line::from(Span::styled("   snare sound 0.5 speed .", code)),
+        ];
+
+        frame.render_widget(Paragraph::new(lines).wrap(Wrap { trim: false }), area);
+    }
+}

crates/ratatui/src/scope.rs

@@ -0,0 +1,176 @@
+//! Oscilloscope waveform widget using braille characters.
+
+use crate::theme;
+use ratatui::buffer::Buffer;
+use ratatui::layout::Rect;
+use ratatui::style::Color;
+use ratatui::widgets::Widget;
+use std::cell::RefCell;
+
+thread_local! {
+    static PATTERNS: RefCell<Vec<u8>> = const { RefCell::new(Vec::new()) };
+}
+
+/// Rendering direction for the oscilloscope.
+#[derive(Clone, Copy)]
+pub enum Orientation {
+    Horizontal,
+    Vertical,
+}
+
+/// Single-channel oscilloscope using braille dot plotting.
+pub struct Scope<'a> {
+    data: &'a [f32],
+    orientation: Orientation,
+    color: Option<Color>,
+    gain: f32,
+}
+
+impl<'a> Scope<'a> {
+    pub fn new(data: &'a [f32]) -> Self {
+        Self {
+            data,
+            orientation: Orientation::Horizontal,
+            color: None,
+            gain: 1.0,
+        }
+    }
+
+    pub fn orientation(mut self, o: Orientation) -> Self {
+        self.orientation = o;
+        self
+    }
+
+    pub fn color(mut self, c: Color) -> Self {
+        self.color = Some(c);
+        self
+    }
+
+    pub fn gain(mut self, g: f32) -> Self {
+        self.gain = g;
+        self
+    }
+}
+
+impl Widget for Scope<'_> {
+    fn render(self, area: Rect, buf: &mut Buffer) {
+        if area.width == 0 || area.height == 0 || self.data.is_empty() {
+            return;
+        }
+
+        let color = self.color.unwrap_or_else(|| theme::get().meter.low);
+
+        match self.orientation {
+            Orientation::Horizontal => {
+                render_horizontal(self.data, area, buf, color, self.gain)
+            }
+            Orientation::Vertical => render_vertical(self.data, area, buf, color, self.gain),
+        }
+    }
+}
+
+fn render_horizontal(data: &[f32], area: Rect, buf: &mut Buffer, color: Color, gain: f32) {
+    let width = area.width as usize;
+    let height = area.height as usize;
+    let fine_width = width * 2;
+    let fine_height = height * 4;
+
+    PATTERNS.with(|p| {
+        let mut patterns = p.borrow_mut();
+        let size = width * height;
+        patterns.clear();
+        patterns.resize(size, 0);
+
+        for fine_x in 0..fine_width {
+            let sample_idx = (fine_x * data.len()) / fine_width;
+            let sample = (data.get(sample_idx).copied().unwrap_or(0.0) * gain).clamp(-1.0, 1.0);
+
+            let fine_y = ((1.0 - sample) * 0.5 * (fine_height - 1) as f32).round() as usize;
+            let fine_y = fine_y.min(fine_height - 1);
+
+            let char_x = fine_x / 2;
+            let char_y = fine_y / 4;
+            let dot_x = fine_x % 2;
+            let dot_y = fine_y % 4;
+
+            let bit = match (dot_x, dot_y) {
+                (0, 0) => 0x01,
+                (0, 1) => 0x02,
+                (0, 2) => 0x04,
+                (0, 3) => 0x40,
+                (1, 0) => 0x08,
+                (1, 1) => 0x10,
+                (1, 2) => 0x20,
+                (1, 3) => 0x80,
+                _ => unreachable!(),
+            };
+
+            patterns[char_y * width + char_x] |= bit;
+        }
+
+        for cy in 0..height {
+            for cx in 0..width {
+                let pattern = patterns[cy * width + cx];
+                if pattern != 0 {
+                    let ch = char::from_u32(0x2800 + pattern as u32).unwrap_or(' ');
+                    buf[(area.x + cx as u16, area.y + cy as u16)]
+                        .set_char(ch)
+                        .set_fg(color);
+                }
+            }
+        }
+    });
+}
+
+fn render_vertical(data: &[f32], area: Rect, buf: &mut Buffer, color: Color, gain: f32) {
+    let width = area.width as usize;
+    let height = area.height as usize;
+    let fine_width = width * 2;
+    let fine_height = height * 4;
+
+    PATTERNS.with(|p| {
+        let mut patterns = p.borrow_mut();
+        let size = width * height;
+        patterns.clear();
+        patterns.resize(size, 0);
+
+        for fine_y in 0..fine_height {
+            let sample_idx = (fine_y * data.len()) / fine_height;
+            let sample = (data.get(sample_idx).copied().unwrap_or(0.0) * gain).clamp(-1.0, 1.0);
+
+            let fine_x = ((sample + 1.0) * 0.5 * (fine_width - 1) as f32).round() as usize;
+            let fine_x = fine_x.min(fine_width - 1);
+
+            let char_x = fine_x / 2;
+            let char_y = fine_y / 4;
+            let dot_x = fine_x % 2;
+            let dot_y = fine_y % 4;
+
+            let bit = match (dot_x, dot_y) {
+                (0, 0) => 0x01,
+                (0, 1) => 0x02,
+                (0, 2) => 0x04,
+                (0, 3) => 0x40,
+                (1, 0) => 0x08,
+                (1, 1) => 0x10,
+                (1, 2) => 0x20,
+                (1, 3) => 0x80,
+                _ => unreachable!(),
+            };
+
+            patterns[char_y * width + char_x] |= bit;
+        }
+
+        for cy in 0..height {
+            for cx in 0..width {
+                let pattern = patterns[cy * width + cx];
+                if pattern != 0 {
+                    let ch = char::from_u32(0x2800 + pattern as u32).unwrap_or(' ');
+                    buf[(area.x + cx as u16, area.y + cy as u16)]
+                        .set_char(ch)
+                        .set_fg(color);
+                }
+            }
+        }
+    });
+}

crates/ratatui/src/scroll_indicators.rs

@@ -0,0 +1,57 @@
+//! Up/down arrow scroll indicators for bounded lists.
+
+use ratatui::layout::Rect;
+use ratatui::style::{Color, Style};
+use ratatui::widgets::Paragraph;
+use ratatui::Frame;
+
+/// Horizontal alignment for scroll indicators.
+pub enum IndicatorAlign {
+    Center,
+    Right,
+}
+
+/// Render up/down scroll arrows when content overflows.
+pub fn render_scroll_indicators(
+    frame: &mut Frame,
+    area: Rect,
+    offset: usize,
+    visible: usize,
+    total: usize,
+    color: Color,
+    align: IndicatorAlign,
+) {
+    let style = Style::new().fg(color);
+
+    match align {
+        IndicatorAlign::Center => {
+            if offset > 0 {
+                let indicator = Paragraph::new("▲")
+                    .style(style)
+                    .alignment(ratatui::layout::Alignment::Center);
+                frame.render_widget(indicator, Rect { height: 1, ..area });
+            }
+            if offset + visible < total {
+                let y = area.y + area.height.saturating_sub(1);
+                let indicator = Paragraph::new("▼")
+                    .style(style)
+                    .alignment(ratatui::layout::Alignment::Center);
+                frame.render_widget(indicator, Rect { y, height: 1, ..area });
+            }
+        }
+        IndicatorAlign::Right => {
+            let x = area.x + area.width.saturating_sub(1);
+            if offset > 0 {
+                let indicator = Paragraph::new("▲").style(style);
+                frame.render_widget(indicator, Rect::new(x, area.y, 1, 1));
+            }
+            if offset + visible < total {
+                let indicator = Paragraph::new("▼").style(style);
+                frame.render_widget(
+                    indicator,
+                    Rect::new(x, area.y + area.height.saturating_sub(1), 1, 1),
+                );
+            }
+        }
+    }
+}

crates/ratatui/src/search_bar.rs

@@ -0,0 +1,23 @@
+//! Inline search bar with active/inactive styling.
+
+use ratatui::layout::Rect;
+use ratatui::style::Style;
+use ratatui::text::{Line, Span};
+use ratatui::widgets::Paragraph;
+use ratatui::Frame;
+
+use crate::theme;
+
+/// Render a `/query` search bar.
+pub fn render_search_bar(frame: &mut Frame, area: Rect, query: &str, active: bool) {
+    let theme = theme::get();
+    let style = if active {
+        Style::new().fg(theme.search.active)
+    } else {
+        Style::new().fg(theme.search.inactive)
+    };
+    let cursor = if active { "_" } else { "" };
+    let text = format!(" /{query}{cursor}");
+    let line = Line::from(Span::styled(text, style));
+    frame.render_widget(Paragraph::new(vec![line]), area);
+}

crates/ratatui/src/section_header.rs

@@ -0,0 +1,33 @@
+//! Section header with horizontal divider for engine-view panels.
+
+use ratatui::layout::{Constraint, Layout, Rect};
+use ratatui::style::{Modifier, Style};
+use ratatui::widgets::Paragraph;
+use ratatui::Frame;
+
+use crate::theme;
+
+/// Render a section title with a horizontal divider below it.
+pub fn render_section_header(frame: &mut Frame, title: &str, focused: bool, area: Rect) {
+    let theme = theme::get();
+    let [header_area, divider_area] =
+        Layout::vertical([Constraint::Length(1), Constraint::Length(1)]).areas(area);
+
+    let header_style = if focused {
+        Style::new()
+            .fg(theme.engine.header_focused)
+            .add_modifier(Modifier::BOLD)
+    } else {
+        Style::new()
+            .fg(theme.engine.header)
+            .add_modifier(Modifier::BOLD)
+    };
+
+    frame.render_widget(Paragraph::new(title).style(header_style), header_area);
+
+    let divider = "─".repeat(area.width as usize);
+    frame.render_widget(
+        Paragraph::new(divider).style(Style::new().fg(theme.engine.divider)),
+        divider_area,
+    );
+}

crates/ratatui/src/sparkles.rs

@@ -0,0 +1,63 @@
+//! Decorative particle effect using random Unicode glyphs.
+
+use crate::theme;
+use rand::Rng;
+use ratatui::buffer::Buffer;
+use ratatui::layout::Rect;
+use ratatui::style::{Color, Style};
+use ratatui::widgets::Widget;
+
+const CHARS: &[char] = &['·', '✦', '✧', '°', '•', '+', '⋆', '*'];
+
+struct Sparkle {
+    x: u16,
+    y: u16,
+    char_idx: usize,
+    life: u8,
+}
+
+/// Animated sparkle particles for visual flair.
+#[derive(Default)]
+pub struct Sparkles {
+    sparkles: Vec<Sparkle>,
+}
+
+impl Sparkles {
+    pub fn tick(&mut self, area: Rect) {
+        let mut rng = rand::thread_rng();
+        for _ in 0..3 {
+            if rng.gen_bool(0.6) {
+                self.sparkles.push(Sparkle {
+                    x: rng.gen_range(0..area.width),
+                    y: rng.gen_range(0..area.height),
+                    char_idx: rng.gen_range(0..CHARS.len()),
+                    life: rng.gen_range(15..40),
+                });
+            }
+        }
+        self.sparkles
+            .iter_mut()
+            .for_each(|s| s.life = s.life.saturating_sub(1));
+        self.sparkles.retain(|s| s.life > 0);
+    }
+}
+
+impl Widget for &Sparkles {
+    fn render(self, area: Rect, buf: &mut Buffer) {
+        let colors = theme::get().sparkle.colors;
+        for sp in &self.sparkles {
+            let color = colors[sp.char_idx % colors.len()];
+            let intensity = (sp.life as f32 / 30.0).min(1.0);
+            let r = (color.0 as f32 * intensity) as u8;
+            let g = (color.1 as f32 * intensity) as u8;
+            let b = (color.2 as f32 * intensity) as u8;
+
+            if sp.x < area.width && sp.y < area.height {
+                let x = area.x + sp.x;
+                let y = area.y + sp.y;
+                let ch = CHARS[sp.char_idx];
+                buf[(x, y)].set_char(ch).set_style(Style::new().fg(Color::Rgb(r, g, b)));
+            }
+        }
+    }
+}

crates/ratatui/src/spectrum.rs

@@ -0,0 +1,238 @@
+//! 32-band frequency spectrum display with optional peak hold.
+
+use crate::theme;
+use ratatui::buffer::Buffer;
+use ratatui::layout::Rect;
+use ratatui::style::Color;
+use ratatui::widgets::Widget;
+use std::cell::RefCell;
+
+const BLOCKS: [char; 8] = ['\u{2581}', '\u{2582}', '\u{2583}', '\u{2584}', '\u{2585}', '\u{2586}', '\u{2587}', '\u{2588}'];
+
+#[derive(Clone, Copy, PartialEq, Eq, Default)]
+pub enum SpectrumStyle {
+    #[default]
+    Bars,
+    Line,
+    Filled,
+}
+
+thread_local! {
+    static PEAKS: RefCell<[f32; 32]> = const { RefCell::new([0.0; 32]) };
+    static PATTERNS: RefCell<Vec<u8>> = const { RefCell::new(Vec::new()) };
+}
+
+/// 32-band spectrum analyzer using block characters.
+pub struct Spectrum<'a> {
+    data: &'a [f32; 32],
+    gain: f32,
+    style: SpectrumStyle,
+    peaks: bool,
+}
+
+impl<'a> Spectrum<'a> {
+    pub fn new(data: &'a [f32; 32]) -> Self {
+        Self {
+            data,
+            gain: 1.0,
+            style: SpectrumStyle::Bars,
+            peaks: false,
+        }
+    }
+
+    pub fn gain(mut self, g: f32) -> Self {
+        self.gain = g;
+        self
+    }
+
+    pub fn style(mut self, s: SpectrumStyle) -> Self {
+        self.style = s;
+        self
+    }
+
+    pub fn peaks(mut self, enabled: bool) -> Self {
+        self.peaks = enabled;
+        self
+    }
+}
+
+impl Widget for Spectrum<'_> {
+    fn render(self, area: Rect, buf: &mut Buffer) {
+        if area.width == 0 || area.height == 0 {
+            return;
+        }
+
+        // Update peak hold state
+        let peak_values = if self.peaks {
+            Some(PEAKS.with(|p| {
+                let mut peaks = p.borrow_mut();
+                for (i, &mag) in self.data.iter().enumerate() {
+                    let v = (mag * self.gain).min(1.0);
+                    if v >= peaks[i] {
+                        peaks[i] = v;
+                    } else {
+                        peaks[i] = (peaks[i] - 0.02).max(v);
+                    }
+                }
+                *peaks
+            }))
+        } else {
+            None
+        };
+
+        match self.style {
+            SpectrumStyle::Bars => render_bars(self.data, area, buf, self.gain, peak_values.as_ref()),
+            SpectrumStyle::Line => render_braille(self.data, area, buf, self.gain, false, peak_values.as_ref()),
+            SpectrumStyle::Filled => render_braille(self.data, area, buf, self.gain, true, peak_values.as_ref()),
+        }
+    }
+}
+
+fn band_color(ratio: f32, colors: &theme::ThemeColors) -> Color {
+    if ratio < 0.33 {
+        Color::Rgb(colors.meter.low_rgb.0, colors.meter.low_rgb.1, colors.meter.low_rgb.2)
+    } else if ratio < 0.66 {
+        Color::Rgb(colors.meter.mid_rgb.0, colors.meter.mid_rgb.1, colors.meter.mid_rgb.2)
+    } else {
+        Color::Rgb(colors.meter.high_rgb.0, colors.meter.high_rgb.1, colors.meter.high_rgb.2)
+    }
+}
+
+fn render_bars(data: &[f32; 32], area: Rect, buf: &mut Buffer, gain: f32, peaks: Option<&[f32; 32]>) {
+    let colors = theme::get();
+    let height = area.height as f32;
+    let base = area.width as usize / 32;
+    let remainder = area.width as usize % 32;
+    if base == 0 && remainder == 0 {
+        return;
+    }
+
+    let mut x_start = area.x;
+    for (band, &mag) in data.iter().enumerate() {
+        let w = base + if band < remainder { 1 } else { 0 };
+        if w == 0 {
+            continue;
+        }
+        let bar_height = (mag * gain).min(1.0) * height;
+        let full_cells = bar_height as usize;
+        let frac = bar_height - full_cells as f32;
+        let frac_idx = (frac * 8.0) as usize;
+
+        // Peak hold row
+        let peak_row = peaks.map(|p| {
+            let ph = p[band] * height;
+            let row = (height - ph).max(0.0) as usize;
+            row.min(area.height as usize - 1)
+        });
+
+        for row in 0..area.height as usize {
+            let y = area.y + area.height - 1 - row as u16;
+            let ratio = row as f32 / area.height as f32;
+            let color = band_color(ratio, &colors);
+
+            for dx in 0..w as u16 {
+                let x = x_start + dx;
+                if row < full_cells {
+                    buf[(x, y)].set_char(BLOCKS[7]).set_fg(color);
+                } else if row == full_cells && frac_idx > 0 {
+                    buf[(x, y)].set_char(BLOCKS[frac_idx - 1]).set_fg(color);
+                } else if let Some(pr) = peak_row {
+                    // peak_row is from top (0 = top), row is from bottom
+                    let from_top = area.height as usize - 1 - row;
+                    if from_top == pr {
+                        buf[(x, y)].set_char('─').set_fg(colors.meter.high);
+                    }
+                }
+            }
+        }
+        x_start += w as u16;
+    }
+}
+
+fn render_braille(
+    data: &[f32; 32],
+    area: Rect,
+    buf: &mut Buffer,
+    gain: f32,
+    filled: bool,
+    peaks: Option<&[f32; 32]>,
+) {
+    let colors = theme::get();
+    let width = area.width as usize;
+    let height = area.height as usize;
+    let fine_w = width * 2;
+    let fine_h = height * 4;
+
+    PATTERNS.with(|p| {
+        let mut patterns = p.borrow_mut();
+        patterns.clear();
+        patterns.resize(width * height, 0);
+
+        // Interpolate 32 bands across fine_w columns
+        for fx in 0..fine_w {
+            let band_f = fx as f32 * 31.0 / (fine_w - 1).max(1) as f32;
+            let lo = band_f as usize;
+            let hi = (lo + 1).min(31);
+            let t = band_f - lo as f32;
+            let mag = ((data[lo] * (1.0 - t) + data[hi] * t) * gain).min(1.0);
+            let fy = ((1.0 - mag) * (fine_h - 1) as f32).round() as usize;
+            let fy = fy.min(fine_h - 1);
+
+            if filled {
+                for y in fy..fine_h {
+                    let cy = y / 4;
+                    let dy = y % 4;
+                    let cx = fx / 2;
+                    let dx = fx % 2;
+                    patterns[cy * width + cx] |= braille_bit(dx, dy);
+                }
+            } else {
+                let cy = fy / 4;
+                let dy = fy % 4;
+                let cx = fx / 2;
+                let dx = fx % 2;
+                patterns[cy * width + cx] |= braille_bit(dx, dy);
+            }
+
+            // Peak dots
+            if let Some(pk) = peaks {
+                let pv = (pk[lo] * (1.0 - t) + pk[hi] * t).min(1.0);
+                let py = ((1.0 - pv) * (fine_h - 1) as f32).round() as usize;
+                let py = py.min(fine_h - 1);
+                let cy = py / 4;
+                let dy = py % 4;
+                let cx = fx / 2;
+                let dx = fx % 2;
+                patterns[cy * width + cx] |= braille_bit(dx, dy);
+            }
+        }
+
+        for cy in 0..height {
+            for cx in 0..width {
+                let pattern = patterns[cy * width + cx];
+                if pattern != 0 {
+                    let ratio = 1.0 - (cy as f32 / height as f32);
+                    let color = band_color(ratio, &colors);
+                    let ch = char::from_u32(0x2800 + pattern as u32).unwrap_or(' ');
+                    buf[(area.x + cx as u16, area.y + cy as u16)]
+                        .set_char(ch)
+                        .set_fg(color);
+                }
+            }
+        }
+    });
+}
+
+fn braille_bit(dot_x: usize, dot_y: usize) -> u8 {
+    match (dot_x, dot_y) {
+        (0, 0) => 0x01,
+        (0, 1) => 0x02,
+        (0, 2) => 0x04,
+        (0, 3) => 0x40,
+        (1, 0) => 0x08,
+        (1, 1) => 0x10,
+        (1, 2) => 0x20,
+        (1, 3) => 0x80,
+        _ => unreachable!(),
+    }
+}

crates/ratatui/src/text_input.rs

@@ -1,3 +1,6 @@
+//! Single-line text input modal with optional hint.
+
+use crate::theme;
 use ratatui::layout::{Constraint, Layout, Rect};
 use ratatui::style::{Color, Style};
 use ratatui::text::{Line, Span};
@@ -6,11 +9,12 @@ use ratatui::Frame;
 
 use super::ModalFrame;
 
+/// Modal dialog with a single-line text input.
 pub struct TextInputModal<'a> {
     title: &'a str,
     input: &'a str,
     hint: Option<&'a str>,
-    border_color: Color,
+    border_color: Option<Color>,
     width: u16,
 }
 
@@ -20,7 +24,7 @@ impl<'a> TextInputModal<'a> {
             title,
             input,
             hint: None,
-            border_color: Color::White,
+            border_color: None,
             width: 50,
         }
     }
@@ -31,7 +35,7 @@ impl<'a> TextInputModal<'a> {
     }
 
     pub fn border_color(mut self, c: Color) -> Self {
-        self.border_color = c;
+        self.border_color = Some(c);
         self
     }
 
@@ -40,13 +44,15 @@ impl<'a> TextInputModal<'a> {
         self
     }
 
-    pub fn render_centered(self, frame: &mut Frame, term: Rect) {
+    pub fn render_centered(self, frame: &mut Frame, term: Rect) -> Rect {
+        let colors = theme::get();
+        let border_color = self.border_color.unwrap_or(colors.ui.text_primary);
         let height = if self.hint.is_some() { 6 } else { 5 };
 
         let inner = ModalFrame::new(self.title)
             .width(self.width)
             .height(height)
-            .border_color(self.border_color)
+            .border_color(border_color)
             .render_centered(frame, term);
 
         if self.hint.is_some() {
@@ -56,15 +62,15 @@ impl<'a> TextInputModal<'a> {
             frame.render_widget(
                 Paragraph::new(Line::from(vec![
                     Span::raw("> "),
-                    Span::styled(self.input, Style::new().fg(Color::Cyan)),
-                    Span::styled("█", Style::new().fg(Color::White)),
+                    Span::styled(self.input, Style::new().fg(colors.input.text)),
+                    Span::styled("█", Style::new().fg(colors.input.cursor)),
                 ])),
                 rows[0],
             );
 
             if let Some(hint) = self.hint {
                 frame.render_widget(
-                    Paragraph::new(Span::styled(hint, Style::new().fg(Color::DarkGray))),
+                    Paragraph::new(Span::styled(hint, Style::new().fg(colors.input.hint))),
                     rows[1],
                 );
             }
@@ -72,11 +78,13 @@ impl<'a> TextInputModal<'a> {
             frame.render_widget(
                 Paragraph::new(Line::from(vec![
                     Span::raw("> "),
-                    Span::styled(self.input, Style::new().fg(Color::Cyan)),
-                    Span::styled("█", Style::new().fg(Color::White)),
+                    Span::styled(self.input, Style::new().fg(colors.input.text)),
+                    Span::styled("█", Style::new().fg(colors.input.cursor)),
                 ])),
                 inner,
             );
         }
+
+        inner
     }
 }

crates/ratatui/src/theme/build.rs

@@ -0,0 +1,278 @@
+//! Derive [`ThemeColors`] from a [`Palette`].
+
+use super::*;
+use super::palette::{Palette, Rgb, darken, mid, rgb, tint};
+
+/// Build a complete [`ThemeColors`] from a [`Palette`].
+pub fn build(p: &Palette) -> ThemeColors {
+    let darker_bg = darken(p.bg, 0.15);
+
+    ThemeColors {
+        ui: UiColors {
+            bg: rgb(p.bg),
+            bg_rgb: p.bg,
+            text_primary: rgb(p.fg),
+            text_muted: rgb(p.fg_dim),
+            text_dim: rgb(p.fg_muted),
+            border: rgb(p.surface2),
+            header: rgb(p.cyan),
+            unfocused: rgb(p.fg_muted),
+            accent: rgb(p.accent),
+            surface: rgb(p.surface),
+        },
+        status: StatusColors {
+            playing_bg: rgb(tint(p.bg, p.green, 0.25)),
+            playing_fg: rgb(p.green),
+            stopped_bg: rgb(tint(p.bg, p.red, 0.25)),
+            stopped_fg: rgb(p.red),
+            fill_on: rgb(p.green),
+            fill_off: rgb(p.fg_muted),
+            fill_bg: rgb(p.surface),
+        },
+        selection: SelectionColors {
+            cursor_bg: rgb(p.accent),
+            cursor_fg: rgb(p.bg),
+            selected_bg: rgb(tint(p.bg, p.accent, 0.30)),
+            selected_fg: rgb(p.accent),
+            in_range_bg: rgb(tint(p.bg, p.accent, 0.20)),
+            in_range_fg: rgb(p.fg),
+            cursor: rgb(p.accent),
+            selected: rgb(tint(p.bg, p.accent, 0.30)),
+            in_range: rgb(tint(p.bg, p.accent, 0.20)),
+        },
+        tile: TileColors {
+            playing_active_bg: rgb(tint(p.bg, p.orange, 0.35)),
+            playing_active_fg: rgb(p.orange),
+            playing_inactive_bg: rgb(tint(p.bg, p.yellow, 0.30)),
+            playing_inactive_fg: rgb(p.yellow),
+            active_bg: rgb(tint(p.bg, p.cyan, 0.25)),
+            active_fg: rgb(p.cyan),
+            content_bg: rgb(tint(p.bg, p.cyan, 0.30)),
+            inactive_bg: rgb(p.surface),
+            inactive_fg: rgb(p.fg_dim),
+            active_selected_bg: rgb(tint(p.bg, p.accent, 0.35)),
+            active_in_range_bg: rgb(tint(p.bg, p.accent, 0.22)),
+            link_bright: p.link_bright,
+            link_dim: p.link_dim,
+        },
+        header: HeaderColors {
+            tempo_bg: rgb(tint(p.bg, p.tempo_color, 0.30)),
+            tempo_fg: rgb(p.tempo_color),
+            beat_bg: rgb(tint(p.bg, p.tempo_color, 0.45)),
+            bank_bg: rgb(tint(p.bg, p.bank_color, 0.25)),
+            bank_fg: rgb(p.bank_color),
+            pattern_bg: rgb(tint(p.bg, p.pattern_color, 0.25)),
+            pattern_fg: rgb(p.pattern_color),
+            stats_bg: rgb(p.surface),
+            stats_fg: rgb(p.fg_dim),
+        },
+        modal: ModalColors {
+            border: rgb(p.cyan),
+            border_accent: rgb(p.accent),
+            border_warn: rgb(p.orange),
+            border_dim: rgb(p.fg_muted),
+            confirm: rgb(p.orange),
+            rename: rgb(p.purple),
+            input: rgb(p.cyan),
+            editor: rgb(p.cyan),
+            preview: rgb(p.fg_muted),
+        },
+        flash: FlashColors {
+            error_bg: rgb(tint(p.bg, p.red, 0.30)),
+            error_fg: rgb(p.red),
+            success_bg: rgb(tint(p.bg, p.green, 0.25)),
+            success_fg: rgb(p.green),
+            info_bg: rgb(p.surface),
+            info_fg: rgb(p.fg),
+        },
+        list: ListColors {
+            playing_bg: rgb(tint(p.bg, p.green, 0.25)),
+            playing_fg: rgb(p.green),
+            staged_play_bg: rgb(tint(p.bg, p.purple, 0.30)),
+            staged_play_fg: rgb(p.purple),
+            staged_stop_bg: rgb(tint(p.bg, p.red, 0.30)),
+            staged_stop_fg: rgb(p.red),
+            edit_bg: rgb(tint(p.bg, p.cyan, 0.25)),
+            edit_fg: rgb(p.cyan),
+            hover_bg: rgb(p.surface2),
+            hover_fg: rgb(p.fg),
+            muted_bg: rgb(tint(p.bg, p.surface, 0.30)),
+            muted_fg: rgb(p.fg_muted),
+            soloed_bg: rgb(tint(p.bg, p.yellow, 0.30)),
+            soloed_fg: rgb(p.yellow),
+        },
+        link_status: LinkStatusColors {
+            disabled: rgb(p.red),
+            connected: rgb(p.green),
+            listening: rgb(p.yellow),
+        },
+        syntax: syntax_colors(p, darker_bg),
+        table: TableColors {
+            row_even: rgb(darker_bg),
+            row_odd: rgb(p.bg),
+        },
+        values: ValuesColors {
+            tempo: rgb(p.orange),
+            value: rgb(p.fg_dim),
+        },
+        hint: HintColors {
+            key: rgb(p.orange),
+            text: rgb(p.fg_muted),
+        },
+        view_badge: ViewBadgeColors {
+            bg: rgb(p.fg),
+            fg: rgb(p.bg),
+        },
+        nav: NavColors {
+            selected_bg: rgb(tint(p.bg, p.accent, 0.35)),
+            selected_fg: rgb(p.fg),
+            unselected_bg: rgb(p.surface),
+            unselected_fg: rgb(p.fg_muted),
+        },
+        editor_widget: EditorWidgetColors {
+            cursor_bg: rgb(p.fg),
+            cursor_fg: rgb(p.bg),
+            selection_bg: rgb(tint(p.bg, p.accent, 0.30)),
+            completion_bg: rgb(p.surface),
+            completion_fg: rgb(p.fg),
+            completion_selected: rgb(p.orange),
+            completion_example: rgb(p.cyan),
+        },
+        browser: BrowserColors {
+            directory: rgb(p.blue),
+            project_file: rgb(p.purple),
+            selected: rgb(p.orange),
+            file: rgb(p.fg),
+            focused_border: rgb(p.orange),
+            unfocused_border: rgb(p.fg_muted),
+            root: rgb(p.fg),
+            file_icon: rgb(p.fg_muted),
+            folder_icon: rgb(p.blue),
+            empty_text: rgb(p.fg_muted),
+        },
+        input: InputColors {
+            text: rgb(p.cyan),
+            cursor: rgb(p.fg),
+            hint: rgb(p.fg_muted),
+        },
+        search: SearchColors {
+            active: rgb(p.orange),
+            inactive: rgb(p.fg_muted),
+            match_bg: rgb(p.yellow),
+            match_fg: rgb(p.bg),
+        },
+        markdown: MarkdownColors {
+            h1: rgb(p.cyan),
+            h2: rgb(p.orange),
+            h3: rgb(p.purple),
+            code: rgb(p.green),
+            code_border: rgb(mid(p.surface2, p.fg_muted, 0.3)),
+            link: rgb(p.accent),
+            link_url: rgb(mid(p.fg_muted, p.fg_dim, 0.3)),
+            quote: rgb(p.fg_muted),
+            text: rgb(p.fg),
+            list: rgb(p.fg),
+        },
+        engine: engine_colors(p),
+        dict: dict_colors(p),
+        title: TitleColors {
+            big_title: rgb(p.title_accent),
+            author: rgb(p.title_author),
+            link: rgb(p.green),
+            license: rgb(p.orange),
+            prompt: rgb(mid(p.fg_dim, p.fg, 0.3)),
+            subtitle: rgb(p.fg),
+        },
+        meter: MeterColors {
+            low: rgb(p.green),
+            mid: rgb(p.yellow),
+            high: rgb(p.red),
+            low_rgb: p.meter[0],
+            mid_rgb: p.meter[1],
+            high_rgb: p.meter[2],
+        },
+        sparkle: SparkleColors {
+            colors: p.sparkle,
+        },
+        confirm: ConfirmColors {
+            border: rgb(p.orange),
+            button_selected_bg: rgb(p.orange),
+            button_selected_fg: rgb(p.bg),
+        },
+    }
+}
+
+fn syntax_colors(p: &Palette, darker_bg: Rgb) -> SyntaxColors {
+    let syn_bg = |accent: Rgb| -> Color { rgb(tint(p.bg, accent, 0.20)) };
+    let interval_fg = mid(p.green, p.fg, 0.3);
+
+    SyntaxColors {
+        gap_bg: rgb(darker_bg),
+        executed_bg: rgb(tint(p.bg, p.purple, 0.15)),
+        selected_bg: rgb(tint(p.bg, p.orange, 0.30)),
+        emit: (rgb(p.fg), syn_bg(p.accent)),
+        number: (rgb(p.purple), syn_bg(p.purple)),
+        string: (rgb(p.green), syn_bg(p.green)),
+        comment: (rgb(p.fg_muted), rgb(darker_bg)),
+        keyword: (rgb(p.accent), syn_bg(p.accent)),
+        stack_op: (rgb(p.blue), syn_bg(p.blue)),
+        operator: (rgb(p.red), syn_bg(p.red)),
+        sound: (rgb(p.cyan), syn_bg(p.cyan)),
+        param: (rgb(p.orange), syn_bg(p.orange)),
+        context: (rgb(p.orange), syn_bg(p.orange)),
+        note: (rgb(p.green), syn_bg(p.green)),
+        interval: (rgb(interval_fg), syn_bg(p.green)),
+        variable: (rgb(p.purple), syn_bg(p.purple)),
+        vary: (rgb(p.yellow), syn_bg(p.yellow)),
+        generator: (rgb(p.cyan), syn_bg(p.cyan)),
+        user_defined: (rgb(p.secondary), syn_bg(p.secondary)),
+        default: (rgb(p.fg_dim), rgb(darker_bg)),
+    }
+}
+
+fn engine_colors(p: &Palette) -> EngineColors {
+    let divider = mid(p.surface2, p.fg_muted, 0.2);
+    let label = mid(p.fg_muted, p.fg, 0.4);
+
+    EngineColors {
+        header: rgb(p.cyan),
+        header_focused: rgb(p.yellow),
+        divider: rgb(divider),
+        scroll_indicator: rgb(mid(divider, p.fg_muted, 0.3)),
+        label: rgb(label),
+        label_focused: rgb(mid(label, p.fg, 0.3)),
+        label_dim: rgb(mid(p.fg_muted, label, 0.3)),
+        value: rgb(mid(p.fg_dim, p.fg, 0.5)),
+        focused: rgb(p.yellow),
+        normal: rgb(p.fg),
+        dim: rgb(mid(divider, p.fg_muted, 0.3)),
+        path: rgb(label),
+        border_magenta: rgb(p.purple),
+        border_green: rgb(p.green),
+        border_cyan: rgb(p.cyan),
+        separator: rgb(divider),
+        hint_active: rgb(mid(p.orange, p.yellow, 0.5)),
+        hint_inactive: rgb(divider),
+    }
+}
+
+fn dict_colors(p: &Palette) -> DictColors {
+    let divider = mid(p.surface2, p.fg_muted, 0.2);
+    let label = mid(p.fg_muted, p.fg, 0.4);
+
+    DictColors {
+        word_name: rgb(p.green),
+        word_bg: rgb(tint(p.bg, p.cyan, 0.20)),
+        alias: rgb(p.fg_muted),
+        stack_sig: rgb(p.purple),
+        description: rgb(p.fg),
+        example: rgb(label),
+        category_focused: rgb(p.yellow),
+        category_selected: rgb(p.cyan),
+        category_normal: rgb(p.fg),
+        category_dimmed: rgb(mid(divider, p.fg_muted, 0.3)),
+        border_focused: rgb(p.yellow),
+        border_normal: rgb(divider),
+        header_desc: rgb(mid(label, p.fg, 0.3)),
+    }
+}

crates/ratatui/src/theme/catppuccin_latte.rs

@@ -0,0 +1,41 @@
+//! Catppuccin Latte palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (239, 241, 245),
+        surface: (204, 208, 218),
+        surface2: (188, 192, 204),
+        fg: (76, 79, 105),
+        fg_dim: (108, 111, 133),
+        fg_muted: (140, 143, 161),
+        accent: (136, 57, 239),     // mauve
+        red: (210, 15, 57),
+        green: (64, 160, 43),
+        yellow: (223, 142, 29),
+        blue: (32, 159, 181),       // sapphire
+        purple: (136, 57, 239),
+        cyan: (23, 146, 153),       // teal
+        orange: (254, 100, 11),     // peach
+        tempo_color: (136, 57, 239),
+        bank_color: (32, 159, 181),
+        pattern_color: (23, 146, 153),
+        title_accent: (136, 57, 239),
+        title_author: (114, 135, 253),
+        secondary: (230, 69, 83),    // maroon
+        link_bright: [
+            (136, 57, 239), (234, 118, 203), (254, 100, 11),
+            (4, 165, 229), (64, 160, 43),
+        ],
+        link_dim: [
+            (210, 200, 240), (240, 210, 230), (250, 220, 200),
+            (200, 230, 240), (210, 235, 210),
+        ],
+        sparkle: [
+            (114, 135, 253), (254, 100, 11), (64, 160, 43),
+            (234, 118, 203), (136, 57, 239),
+        ],
+        meter: [(50, 150, 40), (200, 140, 30), (200, 40, 50)],
+    }
+}

crates/ratatui/src/theme/catppuccin_mocha.rs

@@ -0,0 +1,41 @@
+//! Catppuccin Mocha palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (30, 30, 46),
+        surface: (49, 50, 68),
+        surface2: (69, 71, 90),
+        fg: (205, 214, 244),
+        fg_dim: (166, 173, 200),
+        fg_muted: (127, 132, 156),
+        accent: (203, 166, 247),    // mauve
+        red: (243, 139, 168),
+        green: (166, 227, 161),
+        yellow: (249, 226, 175),
+        blue: (116, 199, 236),      // sapphire
+        purple: (203, 166, 247),    // mauve
+        cyan: (148, 226, 213),      // teal
+        orange: (250, 179, 135),    // peach
+        tempo_color: (203, 166, 247),
+        bank_color: (116, 199, 236),
+        pattern_color: (148, 226, 213),
+        title_accent: (203, 166, 247),
+        title_author: (180, 190, 254),
+        secondary: (235, 160, 172),  // maroon
+        link_bright: [
+            (203, 166, 247), (245, 194, 231), (250, 179, 135),
+            (137, 220, 235), (166, 227, 161),
+        ],
+        link_dim: [
+            (70, 55, 85), (85, 65, 80), (85, 60, 45),
+            (45, 75, 80), (55, 80, 55),
+        ],
+        sparkle: [
+            (200, 220, 255), (250, 179, 135), (166, 227, 161),
+            (245, 194, 231), (203, 166, 247),
+        ],
+        meter: [(40, 180, 80), (220, 180, 40), (220, 60, 40)],
+    }
+}

crates/ratatui/src/theme/dracula.rs

@@ -0,0 +1,41 @@
+//! Dracula palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (40, 42, 54),
+        surface: (68, 71, 90),
+        surface2: (55, 57, 70),
+        fg: (248, 248, 242),
+        fg_dim: (98, 114, 164),
+        fg_muted: (80, 85, 110),
+        accent: (189, 147, 249),    // purple
+        red: (255, 85, 85),
+        green: (80, 250, 123),
+        yellow: (241, 250, 140),
+        blue: (139, 233, 253),      // cyan
+        purple: (189, 147, 249),
+        cyan: (139, 233, 253),
+        orange: (255, 184, 108),
+        tempo_color: (189, 147, 249),
+        bank_color: (139, 233, 253),
+        pattern_color: (80, 250, 123),
+        title_accent: (189, 147, 249),
+        title_author: (255, 121, 198),
+        secondary: (255, 184, 108),
+        link_bright: [
+            (189, 147, 249), (255, 121, 198), (255, 184, 108),
+            (139, 233, 253), (80, 250, 123),
+        ],
+        link_dim: [
+            (75, 60, 95), (95, 55, 80), (95, 70, 50),
+            (55, 90, 95), (40, 95, 55),
+        ],
+        sparkle: [
+            (189, 147, 249), (255, 184, 108), (80, 250, 123),
+            (255, 121, 198), (139, 233, 253),
+        ],
+        meter: [(70, 230, 110), (230, 240, 130), (240, 80, 80)],
+    }
+}

crates/ratatui/src/theme/eden.rs

@@ -0,0 +1,41 @@
+//! Eden palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (8, 12, 8),
+        surface: (16, 24, 16),
+        surface2: (32, 48, 32),
+        fg: (200, 216, 192),
+        fg_dim: (122, 144, 112),
+        fg_muted: (64, 88, 56),
+        accent: (64, 192, 64),      // green
+        red: (192, 80, 64),
+        green: (96, 224, 96),       // bright_green
+        yellow: (160, 160, 64),
+        blue: (80, 128, 160),
+        purple: (128, 104, 144),
+        cyan: (80, 168, 144),
+        orange: (176, 128, 48),
+        tempo_color: (128, 104, 144),
+        bank_color: (80, 128, 160),
+        pattern_color: (80, 168, 144),
+        title_accent: (64, 192, 64),
+        title_author: (80, 168, 144),
+        secondary: (176, 128, 48),
+        link_bright: [
+            (64, 192, 64), (80, 168, 144), (160, 160, 64),
+            (80, 128, 160), (192, 80, 64),
+        ],
+        link_dim: [
+            (14, 38, 14), (16, 34, 28), (32, 32, 14),
+            (16, 26, 32), (38, 16, 14),
+        ],
+        sparkle: [
+            (64, 192, 64), (96, 224, 96), (80, 168, 144),
+            (160, 160, 64), (48, 128, 48),
+        ],
+        meter: [(64, 192, 64), (160, 160, 64), (192, 80, 64)],
+    }
+}

crates/ratatui/src/theme/ember.rs

@@ -0,0 +1,41 @@
+//! Ember palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (10, 8, 8),
+        surface: (20, 16, 16),
+        surface2: (42, 32, 32),
+        fg: (232, 221, 208),
+        fg_dim: (160, 144, 128),
+        fg_muted: (96, 80, 64),
+        accent: (224, 128, 48),     // orange
+        red: (224, 80, 64),
+        green: (128, 160, 80),
+        yellow: (208, 160, 48),
+        blue: (96, 128, 176),
+        purple: (160, 112, 144),
+        cyan: (112, 160, 160),
+        orange: (224, 128, 48),
+        tempo_color: (160, 112, 144),
+        bank_color: (96, 128, 176),
+        pattern_color: (112, 160, 160),
+        title_accent: (224, 128, 48),
+        title_author: (224, 80, 64),
+        secondary: (160, 112, 144),
+        link_bright: [
+            (224, 128, 48), (224, 80, 64), (208, 160, 48),
+            (112, 160, 160), (128, 160, 80),
+        ],
+        link_dim: [
+            (45, 28, 14), (45, 18, 14), (42, 32, 12),
+            (22, 32, 32), (26, 32, 18),
+        ],
+        sparkle: [
+            (224, 128, 48), (224, 80, 64), (208, 160, 48),
+            (112, 160, 160), (128, 160, 80),
+        ],
+        meter: [(128, 160, 80), (208, 160, 48), (224, 80, 64)],
+    }
+}

crates/ratatui/src/theme/everforest.rs

@@ -0,0 +1,41 @@
+//! Everforest palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (45, 53, 59),
+        surface: (52, 62, 68),
+        surface2: (68, 80, 86),
+        fg: (211, 198, 170),
+        fg_dim: (135, 131, 116),
+        fg_muted: (80, 80, 68),
+        accent: (167, 192, 128),
+        red: (230, 126, 128),
+        green: (167, 192, 128),
+        yellow: (219, 188, 127),
+        blue: (127, 187, 179),
+        purple: (214, 153, 182),
+        cyan: (131, 192, 146),
+        orange: (230, 152, 117),
+        tempo_color: (214, 153, 182),
+        bank_color: (127, 187, 179),
+        pattern_color: (131, 192, 146),
+        title_accent: (167, 192, 128),
+        title_author: (127, 187, 179),
+        secondary: (230, 152, 117),
+        link_bright: [
+            (167, 192, 128), (214, 153, 182), (230, 152, 117),
+            (127, 187, 179), (219, 188, 127),
+        ],
+        link_dim: [
+            (56, 66, 46), (70, 52, 62), (72, 52, 42),
+            (44, 64, 60), (70, 62, 44),
+        ],
+        sparkle: [
+            (167, 192, 128), (230, 152, 117), (131, 192, 146),
+            (214, 153, 182), (219, 188, 127),
+        ],
+        meter: [(148, 172, 110), (200, 170, 108), (210, 108, 110)],
+    }
+}

crates/ratatui/src/theme/fairyfloss.rs

@@ -0,0 +1,41 @@
+//! Fairyfloss palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (90, 84, 117),
+        surface: (113, 103, 153),
+        surface2: (130, 120, 165),
+        fg: (248, 248, 240),
+        fg_dim: (197, 163, 255),
+        fg_muted: (168, 164, 177),
+        accent: (255, 184, 209),    // pink
+        red: (255, 133, 127),       // coral
+        green: (194, 255, 223),     // mint
+        yellow: (255, 243, 82),
+        blue: (197, 163, 255),      // lavender
+        purple: (174, 129, 255),
+        cyan: (194, 255, 223),      // mint
+        orange: (255, 133, 127),    // coral
+        tempo_color: (255, 184, 209),
+        bank_color: (194, 255, 223),
+        pattern_color: (174, 129, 255),
+        title_accent: (255, 184, 209),
+        title_author: (194, 255, 223),
+        secondary: (255, 133, 127),
+        link_bright: [
+            (255, 184, 209), (174, 129, 255), (255, 133, 127),
+            (194, 255, 223), (255, 243, 82),
+        ],
+        link_dim: [
+            (100, 75, 90), (85, 70, 105), (100, 65, 65),
+            (75, 100, 95), (100, 95, 55),
+        ],
+        sparkle: [
+            (194, 255, 223), (255, 133, 127), (255, 243, 82),
+            (255, 184, 209), (174, 129, 255),
+        ],
+        meter: [(194, 255, 223), (255, 243, 82), (255, 133, 127)],
+    }
+}

crates/ratatui/src/theme/fauve.rs

@@ -0,0 +1,41 @@
+//! Fauve palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (28, 22, 18),
+        surface: (42, 33, 26),
+        surface2: (58, 46, 36),
+        fg: (240, 228, 210),
+        fg_dim: (170, 150, 130),
+        fg_muted: (100, 82, 66),
+        accent: (230, 60, 20),
+        red: (220, 38, 32),
+        green: (30, 170, 80),
+        yellow: (255, 210, 0),
+        blue: (20, 80, 200),
+        purple: (170, 40, 150),
+        cyan: (0, 150, 180),
+        orange: (240, 120, 0),
+        tempo_color: (230, 60, 20),
+        bank_color: (20, 80, 200),
+        pattern_color: (0, 150, 180),
+        title_accent: (230, 60, 20),
+        title_author: (20, 80, 200),
+        secondary: (170, 40, 150),
+        link_bright: [
+            (230, 60, 20), (20, 80, 200), (240, 120, 0),
+            (0, 150, 180), (30, 170, 80),
+        ],
+        link_dim: [
+            (72, 24, 10), (10, 28, 65), (76, 40, 6),
+            (6, 48, 58), (14, 54, 28),
+        ],
+        sparkle: [
+            (230, 60, 20), (255, 210, 0), (30, 170, 80),
+            (20, 80, 200), (170, 40, 150),
+        ],
+        meter: [(26, 152, 72), (235, 190, 0), (200, 34, 28)],
+    }
+}

crates/ratatui/src/theme/georges.rs

@@ -0,0 +1,41 @@
+//! Georges palette (C64 colors on black).
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (0, 0, 0),
+        surface: (16, 16, 16),
+        surface2: (24, 24, 24),
+        fg: (187, 187, 187),
+        fg_dim: (119, 119, 119),
+        fg_muted: (51, 51, 51),
+        accent: (0, 136, 255),      // lightblue
+        red: (255, 119, 119),       // lightred
+        green: (0, 204, 85),
+        yellow: (238, 238, 119),
+        blue: (0, 136, 255),        // lightblue
+        purple: (204, 68, 204),     // violet
+        cyan: (170, 255, 238),
+        orange: (221, 136, 85),
+        tempo_color: (204, 68, 204),
+        bank_color: (0, 136, 255),
+        pattern_color: (0, 204, 85),
+        title_accent: (0, 136, 255),
+        title_author: (0, 204, 85),
+        secondary: (221, 136, 85),
+        link_bright: [
+            (0, 136, 255), (0, 204, 85), (238, 238, 119),
+            (204, 68, 204), (170, 255, 238),
+        ],
+        link_dim: [
+            (0, 20, 40), (0, 30, 12), (34, 34, 16),
+            (30, 10, 30), (24, 36, 34),
+        ],
+        sparkle: [
+            (0, 136, 255), (170, 255, 238), (0, 204, 85),
+            (238, 238, 119), (204, 68, 204),
+        ],
+        meter: [(0, 204, 85), (238, 238, 119), (255, 119, 119)],
+    }
+}

crates/ratatui/src/theme/gruvbox_dark.rs

@@ -0,0 +1,41 @@
+//! Gruvbox Dark palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (40, 40, 40),
+        surface: (60, 56, 54),
+        surface2: (80, 73, 69),
+        fg: (235, 219, 178),
+        fg_dim: (189, 174, 147),
+        fg_muted: (168, 153, 132),
+        accent: (254, 128, 25),     // orange
+        red: (251, 73, 52),
+        green: (184, 187, 38),
+        yellow: (250, 189, 47),
+        blue: (131, 165, 152),
+        purple: (211, 134, 155),
+        cyan: (142, 192, 124),      // aqua
+        orange: (254, 128, 25),
+        tempo_color: (254, 128, 25),
+        bank_color: (131, 165, 152),
+        pattern_color: (142, 192, 124),
+        title_accent: (254, 128, 25),
+        title_author: (250, 189, 47),
+        secondary: (254, 128, 25),
+        link_bright: [
+            (254, 128, 25), (211, 134, 155), (250, 189, 47),
+            (131, 165, 152), (184, 187, 38),
+        ],
+        link_dim: [
+            (85, 55, 35), (75, 55, 65), (80, 70, 40),
+            (50, 60, 60), (60, 65, 35),
+        ],
+        sparkle: [
+            (250, 189, 47), (254, 128, 25), (184, 187, 38),
+            (211, 134, 155), (131, 165, 152),
+        ],
+        meter: [(170, 175, 35), (235, 180, 45), (240, 70, 50)],
+    }
+}

crates/ratatui/src/theme/hot_dog_stand.rs

@@ -0,0 +1,41 @@
+//! Hot Dog Stand palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (255, 0, 0),
+        surface: (215, 0, 0),
+        surface2: (175, 0, 0),
+        fg: (255, 255, 0),
+        fg_dim: (255, 255, 95),
+        fg_muted: (255, 215, 0),
+        accent: (255, 255, 0),
+        red: (255, 255, 255),
+        green: (255, 255, 0),
+        yellow: (255, 215, 0),
+        blue: (255, 255, 0),
+        purple: (255, 255, 255),
+        cyan: (255, 255, 0),
+        orange: (255, 215, 0),
+        tempo_color: (255, 255, 0),
+        bank_color: (255, 255, 0),
+        pattern_color: (255, 255, 0),
+        title_accent: (255, 255, 0),
+        title_author: (255, 255, 255),
+        secondary: (255, 215, 0),
+        link_bright: [
+            (255, 255, 0), (255, 255, 255), (255, 215, 0),
+            (255, 255, 95), (255, 255, 0),
+        ],
+        link_dim: [
+            (140, 140, 0), (140, 140, 140), (140, 120, 0),
+            (140, 140, 60), (140, 140, 0),
+        ],
+        sparkle: [
+            (255, 255, 0), (255, 255, 255), (255, 215, 0),
+            (255, 255, 95), (255, 255, 0),
+        ],
+        meter: [(255, 255, 0), (255, 215, 0), (255, 255, 255)],
+    }
+}

crates/ratatui/src/theme/iceberg.rs

@@ -0,0 +1,41 @@
+//! Iceberg palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (22, 24, 33),
+        surface: (30, 33, 46),
+        surface2: (45, 48, 64),
+        fg: (198, 200, 209),
+        fg_dim: (109, 112, 126),
+        fg_muted: (64, 66, 78),
+        accent: (132, 160, 198),
+        red: (226, 120, 120),
+        green: (180, 190, 130),
+        yellow: (226, 164, 120),
+        blue: (132, 160, 198),
+        purple: (160, 147, 199),
+        cyan: (137, 184, 194),
+        orange: (226, 164, 120),
+        tempo_color: (160, 147, 199),
+        bank_color: (132, 160, 198),
+        pattern_color: (137, 184, 194),
+        title_accent: (132, 160, 198),
+        title_author: (160, 147, 199),
+        secondary: (226, 164, 120),
+        link_bright: [
+            (132, 160, 198), (160, 147, 199), (226, 164, 120),
+            (137, 184, 194), (180, 190, 130),
+        ],
+        link_dim: [
+            (45, 55, 70), (55, 50, 68), (70, 55, 42),
+            (46, 62, 66), (58, 62, 44),
+        ],
+        sparkle: [
+            (132, 160, 198), (226, 164, 120), (180, 190, 130),
+            (160, 147, 199), (226, 120, 120),
+        ],
+        meter: [(160, 175, 115), (210, 150, 105), (200, 105, 105)],
+    }
+}

crates/ratatui/src/theme/jaipur.rs

@@ -0,0 +1,41 @@
+//! Jaipur palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (30, 24, 22),
+        surface: (44, 36, 32),
+        surface2: (60, 48, 42),
+        fg: (238, 222, 200),
+        fg_dim: (165, 145, 125),
+        fg_muted: (95, 78, 65),
+        accent: (210, 90, 100),
+        red: (200, 44, 52),
+        green: (30, 160, 120),
+        yellow: (240, 180, 20),
+        blue: (60, 60, 180),
+        purple: (150, 50, 120),
+        cyan: (0, 155, 155),
+        orange: (220, 120, 50),
+        tempo_color: (210, 90, 100),
+        bank_color: (60, 60, 180),
+        pattern_color: (0, 155, 155),
+        title_accent: (210, 90, 100),
+        title_author: (60, 60, 180),
+        secondary: (220, 120, 50),
+        link_bright: [
+            (210, 90, 100), (60, 60, 180), (220, 120, 50),
+            (0, 155, 155), (30, 160, 120),
+        ],
+        link_dim: [
+            (66, 30, 34), (22, 22, 58), (70, 40, 18),
+            (6, 48, 48), (12, 50, 38),
+        ],
+        sparkle: [
+            (210, 90, 100), (240, 180, 20), (30, 160, 120),
+            (60, 60, 180), (150, 50, 120),
+        ],
+        meter: [(26, 144, 106), (222, 164, 18), (184, 40, 46)],
+    }
+}

crates/ratatui/src/theme/kanagawa.rs

@@ -0,0 +1,41 @@
+//! Kanagawa palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (31, 31, 40),
+        surface: (43, 43, 54),
+        surface2: (54, 54, 70),
+        fg: (220, 215, 186),
+        fg_dim: (160, 158, 140),
+        fg_muted: (114, 113, 105),
+        accent: (210, 126, 153),    // sakura_pink
+        red: (195, 64, 67),
+        green: (118, 148, 106),
+        yellow: (230, 195, 132),    // carp_yellow
+        blue: (126, 156, 216),      // crystal_blue
+        purple: (149, 127, 184),    // oni_violet
+        cyan: (127, 180, 202),      // spring_blue
+        orange: (230, 195, 132),    // carp_yellow
+        tempo_color: (149, 127, 184),
+        bank_color: (126, 156, 216),
+        pattern_color: (118, 148, 106),
+        title_accent: (210, 126, 153),
+        title_author: (126, 156, 216),
+        secondary: (210, 126, 153),
+        link_bright: [
+            (228, 104, 118), (149, 127, 184), (230, 195, 132),
+            (127, 180, 202), (118, 148, 106),
+        ],
+        link_dim: [
+            (75, 45, 50), (55, 50, 70), (70, 60, 50),
+            (45, 60, 70), (45, 55, 45),
+        ],
+        sparkle: [
+            (127, 180, 202), (230, 195, 132), (118, 148, 106),
+            (228, 104, 118), (149, 127, 184),
+        ],
+        meter: [(118, 148, 106), (230, 195, 132), (228, 104, 118)],
+    }
+}

crates/ratatui/src/theme/letz_light.rs

@@ -0,0 +1,41 @@
+//! Letz Light palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (255, 255, 255),
+        surface: (235, 235, 240),
+        surface2: (210, 210, 215),
+        fg: (29, 29, 31),
+        fg_dim: (110, 110, 115),
+        fg_muted: (160, 160, 165),
+        accent: (0, 112, 243),
+        red: (209, 47, 27),
+        green: (112, 127, 52),
+        yellow: (200, 150, 20),
+        blue: (0, 112, 243),
+        purple: (173, 61, 164),     // keyword
+        cyan: (62, 128, 135),       // function
+        orange: (120, 73, 42),      // preproc
+        tempo_color: (112, 61, 170),
+        bank_color: (0, 112, 243),
+        pattern_color: (62, 128, 135),
+        title_accent: (0, 112, 243),
+        title_author: (112, 61, 170),
+        secondary: (120, 73, 42),
+        link_bright: [
+            (173, 61, 164), (0, 112, 243), (120, 73, 42),
+            (62, 128, 135), (112, 127, 52),
+        ],
+        link_dim: [
+            (235, 215, 235), (210, 225, 250), (240, 225, 210),
+            (215, 235, 240), (225, 235, 215),
+        ],
+        sparkle: [
+            (0, 112, 243), (173, 61, 164), (112, 127, 52),
+            (62, 128, 135), (120, 73, 42),
+        ],
+        meter: [(112, 127, 52), (200, 150, 20), (209, 47, 27)],
+    }
+}

crates/ratatui/src/theme/mod.rs

@@ -0,0 +1,436 @@
+//! Centralized color definitions for Cagire TUI.
+//! Supports multiple color schemes with runtime switching.
+
+pub mod palette;
+pub mod build;
+mod catppuccin_latte;
+mod catppuccin_mocha;
+mod dracula;
+mod eden;
+mod ember;
+mod everforest;
+mod georges;
+mod fairyfloss;
+mod gruvbox_dark;
+mod hot_dog_stand;
+mod iceberg;
+mod jaipur;
+mod kanagawa;
+mod letz_light;
+mod monochrome_black;
+mod monochrome_white;
+mod monokai;
+mod nord;
+mod fauve;
+mod pitch_black;
+mod tropicalia;
+mod rose_pine;
+mod tokyo_night;
+pub mod transform;
+
+use ratatui::style::Color;
+use std::cell::RefCell;
+use std::rc::Rc;
+
+/// Entry in the theme registry: id, display label, and palette constructor.
+pub struct ThemeEntry {
+    pub id: &'static str,
+    pub label: &'static str,
+    pub palette: fn() -> palette::Palette,
+}
+
+/// All available themes.
+pub const THEMES: &[ThemeEntry] = &[
+    ThemeEntry { id: "CatppuccinMocha", label: "Catppuccin Mocha", palette: catppuccin_mocha::palette },
+    ThemeEntry { id: "CatppuccinLatte", label: "Catppuccin Latte", palette: catppuccin_latte::palette },
+    ThemeEntry { id: "Nord", label: "Nord", palette: nord::palette },
+    ThemeEntry { id: "Dracula", label: "Dracula", palette: dracula::palette },
+    ThemeEntry { id: "GruvboxDark", label: "Gruvbox Dark", palette: gruvbox_dark::palette },
+    ThemeEntry { id: "Monokai", label: "Monokai", palette: monokai::palette },
+    ThemeEntry { id: "MonochromeBlack", label: "Monochrome (Black)", palette: monochrome_black::palette },
+    ThemeEntry { id: "MonochromeWhite", label: "Monochrome (White)", palette: monochrome_white::palette },
+    ThemeEntry { id: "PitchBlack", label: "Pitch Black", palette: pitch_black::palette },
+    ThemeEntry { id: "TokyoNight", label: "Tokyo Night", palette: tokyo_night::palette },
+    ThemeEntry { id: "RosePine", label: "Rosé Pine", palette: rose_pine::palette },
+    ThemeEntry { id: "Kanagawa", label: "Kanagawa", palette: kanagawa::palette },
+    ThemeEntry { id: "Fairyfloss", label: "Fairyfloss", palette: fairyfloss::palette },
+    ThemeEntry { id: "HotDogStand", label: "Hot Dog Stand", palette: hot_dog_stand::palette },
+    ThemeEntry { id: "LetzLight", label: "Letz Light", palette: letz_light::palette },
+    ThemeEntry { id: "Ember", label: "Ember", palette: ember::palette },
+    ThemeEntry { id: "Eden", label: "Eden", palette: eden::palette },
+    ThemeEntry { id: "Georges", label: "Georges", palette: georges::palette },
+    ThemeEntry { id: "Iceberg", label: "Iceberg", palette: iceberg::palette },
+    ThemeEntry { id: "Everforest", label: "Everforest", palette: everforest::palette },
+    ThemeEntry { id: "Fauve", label: "Fauve", palette: fauve::palette },
+    ThemeEntry { id: "Tropicalia", label: "Tropicalia", palette: tropicalia::palette },
+    ThemeEntry { id: "Jaipur", label: "Jaipur", palette: jaipur::palette },
+];
+
+thread_local! {
+    static CURRENT_THEME: RefCell<Rc<ThemeColors>> = RefCell::new(Rc::new(build::build(&(THEMES[0].palette)())));
+}
+
+/// Return the current thread-local theme (cheap Rc clone, not a deep copy).
+pub fn get() -> Rc<ThemeColors> {
+    CURRENT_THEME.with(|t| Rc::clone(&t.borrow()))
+}
+
+/// Set the current thread-local theme.
+pub fn set(theme: ThemeColors) {
+    CURRENT_THEME.with(|t| *t.borrow_mut() = Rc::new(theme));
+}
+
+/// Complete set of resolved colors for all UI components.
+#[derive(Clone)]
+pub struct ThemeColors {
+    pub ui: UiColors,
+    pub status: StatusColors,
+    pub selection: SelectionColors,
+    pub tile: TileColors,
+    pub header: HeaderColors,
+    pub modal: ModalColors,
+    pub flash: FlashColors,
+    pub list: ListColors,
+    pub link_status: LinkStatusColors,
+    pub syntax: SyntaxColors,
+    pub table: TableColors,
+    pub values: ValuesColors,
+    pub hint: HintColors,
+    pub view_badge: ViewBadgeColors,
+    pub nav: NavColors,
+    pub editor_widget: EditorWidgetColors,
+    pub browser: BrowserColors,
+    pub input: InputColors,
+    pub search: SearchColors,
+    pub markdown: MarkdownColors,
+    pub engine: EngineColors,
+    pub dict: DictColors,
+    pub title: TitleColors,
+    pub meter: MeterColors,
+    pub sparkle: SparkleColors,
+    pub confirm: ConfirmColors,
+}
+
+/// Core UI colors: background, text, borders.
+#[derive(Clone)]
+pub struct UiColors {
+    pub bg: Color,
+    pub bg_rgb: (u8, u8, u8),
+    pub text_primary: Color,
+    pub text_muted: Color,
+    pub text_dim: Color,
+    pub border: Color,
+    pub header: Color,
+    pub unfocused: Color,
+    pub accent: Color,
+    pub surface: Color,
+}
+
+/// Playback status bar colors.
+#[derive(Clone)]
+pub struct StatusColors {
+    pub playing_bg: Color,
+    pub playing_fg: Color,
+    pub stopped_bg: Color,
+    pub stopped_fg: Color,
+    pub fill_on: Color,
+    pub fill_off: Color,
+    pub fill_bg: Color,
+}
+
+/// Step grid selection and cursor colors.
+#[derive(Clone)]
+pub struct SelectionColors {
+    pub cursor_bg: Color,
+    pub cursor_fg: Color,
+    pub selected_bg: Color,
+    pub selected_fg: Color,
+    pub in_range_bg: Color,
+    pub in_range_fg: Color,
+    pub cursor: Color,
+    pub selected: Color,
+    pub in_range: Color,
+}
+
+/// Step tile colors for various states.
+#[derive(Clone)]
+pub struct TileColors {
+    pub playing_active_bg: Color,
+    pub playing_active_fg: Color,
+    pub playing_inactive_bg: Color,
+    pub playing_inactive_fg: Color,
+    pub active_bg: Color,
+    pub active_fg: Color,
+    pub content_bg: Color,
+    pub inactive_bg: Color,
+    pub inactive_fg: Color,
+    pub active_selected_bg: Color,
+    pub active_in_range_bg: Color,
+    pub link_bright: [(u8, u8, u8); 5],
+    pub link_dim: [(u8, u8, u8); 5],
+}
+
+/// Top header bar segment colors.
+#[derive(Clone)]
+pub struct HeaderColors {
+    pub tempo_bg: Color,
+    pub tempo_fg: Color,
+    pub beat_bg: Color,
+    pub bank_bg: Color,
+    pub bank_fg: Color,
+    pub pattern_bg: Color,
+    pub pattern_fg: Color,
+    pub stats_bg: Color,
+    pub stats_fg: Color,
+}
+
+/// Modal dialog border colors.
+#[derive(Clone)]
+pub struct ModalColors {
+    pub border: Color,
+    pub border_accent: Color,
+    pub border_warn: Color,
+    pub border_dim: Color,
+    pub confirm: Color,
+    pub rename: Color,
+    pub input: Color,
+    pub editor: Color,
+    pub preview: Color,
+}
+
+/// Flash notification colors.
+#[derive(Clone)]
+pub struct FlashColors {
+    pub error_bg: Color,
+    pub error_fg: Color,
+    pub success_bg: Color,
+    pub success_fg: Color,
+    pub info_bg: Color,
+    pub info_fg: Color,
+}
+
+/// Pattern list row state colors.
+#[derive(Clone)]
+pub struct ListColors {
+    pub playing_bg: Color,
+    pub playing_fg: Color,
+    pub staged_play_bg: Color,
+    pub staged_play_fg: Color,
+    pub staged_stop_bg: Color,
+    pub staged_stop_fg: Color,
+    pub edit_bg: Color,
+    pub edit_fg: Color,
+    pub hover_bg: Color,
+    pub hover_fg: Color,
+    pub muted_bg: Color,
+    pub muted_fg: Color,
+    pub soloed_bg: Color,
+    pub soloed_fg: Color,
+}
+
+/// Ableton Link status indicator colors.
+#[derive(Clone)]
+pub struct LinkStatusColors {
+    pub disabled: Color,
+    pub connected: Color,
+    pub listening: Color,
+}
+
+/// Syntax highlighting (fg, bg) pairs per token category.
+#[derive(Clone)]
+pub struct SyntaxColors {
+    pub gap_bg: Color,
+    pub executed_bg: Color,
+    pub selected_bg: Color,
+    pub emit: (Color, Color),
+    pub number: (Color, Color),
+    pub string: (Color, Color),
+    pub comment: (Color, Color),
+    pub keyword: (Color, Color),
+    pub stack_op: (Color, Color),
+    pub operator: (Color, Color),
+    pub sound: (Color, Color),
+    pub param: (Color, Color),
+    pub context: (Color, Color),
+    pub note: (Color, Color),
+    pub interval: (Color, Color),
+    pub variable: (Color, Color),
+    pub vary: (Color, Color),
+    pub generator: (Color, Color),
+    pub user_defined: (Color, Color),
+    pub default: (Color, Color),
+}
+
+/// Alternating table row colors.
+#[derive(Clone)]
+pub struct TableColors {
+    pub row_even: Color,
+    pub row_odd: Color,
+}
+
+/// Value display colors.
+#[derive(Clone)]
+pub struct ValuesColors {
+    pub tempo: Color,
+    pub value: Color,
+}
+
+/// Keyboard hint key/text colors.
+#[derive(Clone)]
+pub struct HintColors {
+    pub key: Color,
+    pub text: Color,
+}
+
+/// View badge pill colors.
+#[derive(Clone)]
+pub struct ViewBadgeColors {
+    pub bg: Color,
+    pub fg: Color,
+}
+
+/// Navigation minimap tile colors.
+#[derive(Clone)]
+pub struct NavColors {
+    pub selected_bg: Color,
+    pub selected_fg: Color,
+    pub unselected_bg: Color,
+    pub unselected_fg: Color,
+}
+
+/// Script editor colors.
+#[derive(Clone)]
+pub struct EditorWidgetColors {
+    pub cursor_bg: Color,
+    pub cursor_fg: Color,
+    pub selection_bg: Color,
+    pub completion_bg: Color,
+    pub completion_fg: Color,
+    pub completion_selected: Color,
+    pub completion_example: Color,
+}
+
+/// File and sample browser colors.
+#[derive(Clone)]
+pub struct BrowserColors {
+    pub directory: Color,
+    pub project_file: Color,
+    pub selected: Color,
+    pub file: Color,
+    pub focused_border: Color,
+    pub unfocused_border: Color,
+    pub root: Color,
+    pub file_icon: Color,
+    pub folder_icon: Color,
+    pub empty_text: Color,
+}
+
+/// Text input field colors.
+#[derive(Clone)]
+pub struct InputColors {
+    pub text: Color,
+    pub cursor: Color,
+    pub hint: Color,
+}
+
+/// Search bar and match highlight colors.
+#[derive(Clone)]
+pub struct SearchColors {
+    pub active: Color,
+    pub inactive: Color,
+    pub match_bg: Color,
+    pub match_fg: Color,
+}
+
+/// Markdown renderer colors.
+#[derive(Clone)]
+pub struct MarkdownColors {
+    pub h1: Color,
+    pub h2: Color,
+    pub h3: Color,
+    pub code: Color,
+    pub code_border: Color,
+    pub link: Color,
+    pub link_url: Color,
+    pub quote: Color,
+    pub text: Color,
+    pub list: Color,
+}
+
+/// Engine view panel colors.
+#[derive(Clone)]
+pub struct EngineColors {
+    pub header: Color,
+    pub header_focused: Color,
+    pub divider: Color,
+    pub scroll_indicator: Color,
+    pub label: Color,
+    pub label_focused: Color,
+    pub label_dim: Color,
+    pub value: Color,
+    pub focused: Color,
+    pub normal: Color,
+    pub dim: Color,
+    pub path: Color,
+    pub border_magenta: Color,
+    pub border_green: Color,
+    pub border_cyan: Color,
+    pub separator: Color,
+    pub hint_active: Color,
+    pub hint_inactive: Color,
+}
+
+/// Dictionary view colors.
+#[derive(Clone)]
+pub struct DictColors {
+    pub word_name: Color,
+    pub word_bg: Color,
+    pub alias: Color,
+    pub stack_sig: Color,
+    pub description: Color,
+    pub example: Color,
+    pub category_focused: Color,
+    pub category_selected: Color,
+    pub category_normal: Color,
+    pub category_dimmed: Color,
+    pub border_focused: Color,
+    pub border_normal: Color,
+    pub header_desc: Color,
+}
+
+/// Title screen colors.
+#[derive(Clone)]
+pub struct TitleColors {
+    pub big_title: Color,
+    pub author: Color,
+    pub link: Color,
+    pub license: Color,
+    pub prompt: Color,
+    pub subtitle: Color,
+}
+
+/// VU meter and spectrum level colors.
+#[derive(Clone)]
+pub struct MeterColors {
+    pub low: Color,
+    pub mid: Color,
+    pub high: Color,
+    pub low_rgb: (u8, u8, u8),
+    pub mid_rgb: (u8, u8, u8),
+    pub high_rgb: (u8, u8, u8),
+}
+
+/// Sparkle particle colors.
+#[derive(Clone)]
+pub struct SparkleColors {
+    pub colors: [(u8, u8, u8); 5],
+}
+
+/// Confirm dialog colors.
+#[derive(Clone)]
+pub struct ConfirmColors {
+    pub border: Color,
+    pub button_selected_bg: Color,
+    pub button_selected_fg: Color,
+}
+

crates/ratatui/src/theme/monochrome_black.rs

@@ -0,0 +1,41 @@
+//! Monochrome (black background) palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (0, 0, 0),
+        surface: (18, 18, 18),
+        surface2: (30, 30, 30),
+        fg: (255, 255, 255),
+        fg_dim: (180, 180, 180),
+        fg_muted: (120, 120, 120),
+        accent: (255, 255, 255),
+        red: (180, 180, 180),
+        green: (255, 255, 255),
+        yellow: (180, 180, 180),
+        blue: (180, 180, 180),
+        purple: (180, 180, 180),
+        cyan: (255, 255, 255),
+        orange: (255, 255, 255),
+        tempo_color: (255, 255, 255),
+        bank_color: (180, 180, 180),
+        pattern_color: (180, 180, 180),
+        title_accent: (255, 255, 255),
+        title_author: (180, 180, 180),
+        secondary: (120, 120, 120),
+        link_bright: [
+            (255, 255, 255), (200, 200, 200), (160, 160, 160),
+            (220, 220, 220), (180, 180, 180),
+        ],
+        link_dim: [
+            (60, 60, 60), (50, 50, 50), (45, 45, 45),
+            (55, 55, 55), (48, 48, 48),
+        ],
+        sparkle: [
+            (255, 255, 255), (200, 200, 200), (160, 160, 160),
+            (220, 220, 220), (180, 180, 180),
+        ],
+        meter: [(120, 120, 120), (180, 180, 180), (255, 255, 255)],
+    }
+}

crates/ratatui/src/theme/monochrome_white.rs

@@ -0,0 +1,41 @@
+//! Monochrome (white background) palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (255, 255, 255),
+        surface: (240, 240, 240),
+        surface2: (225, 225, 225),
+        fg: (0, 0, 0),
+        fg_dim: (80, 80, 80),
+        fg_muted: (140, 140, 140),
+        accent: (0, 0, 0),
+        red: (140, 140, 140),
+        green: (0, 0, 0),
+        yellow: (80, 80, 80),
+        blue: (80, 80, 80),
+        purple: (80, 80, 80),
+        cyan: (0, 0, 0),
+        orange: (0, 0, 0),
+        tempo_color: (0, 0, 0),
+        bank_color: (80, 80, 80),
+        pattern_color: (80, 80, 80),
+        title_accent: (0, 0, 0),
+        title_author: (80, 80, 80),
+        secondary: (140, 140, 140),
+        link_bright: [
+            (0, 0, 0), (60, 60, 60), (100, 100, 100),
+            (40, 40, 40), (80, 80, 80),
+        ],
+        link_dim: [
+            (200, 200, 200), (210, 210, 210), (215, 215, 215),
+            (205, 205, 205), (212, 212, 212),
+        ],
+        sparkle: [
+            (0, 0, 0), (60, 60, 60), (100, 100, 100),
+            (40, 40, 40), (80, 80, 80),
+        ],
+        meter: [(140, 140, 140), (80, 80, 80), (0, 0, 0)],
+    }
+}

crates/ratatui/src/theme/monokai.rs

@@ -0,0 +1,41 @@
+//! Monokai palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (39, 40, 34),
+        surface: (53, 54, 47),
+        surface2: (70, 71, 62),
+        fg: (248, 248, 242),
+        fg_dim: (190, 190, 180),
+        fg_muted: (117, 113, 94),
+        accent: (249, 38, 114),     // pink
+        red: (249, 38, 114),
+        green: (166, 226, 46),
+        yellow: (230, 219, 116),
+        blue: (102, 217, 239),
+        purple: (174, 129, 255),
+        cyan: (102, 217, 239),
+        orange: (253, 151, 31),
+        tempo_color: (249, 38, 114),
+        bank_color: (102, 217, 239),
+        pattern_color: (166, 226, 46),
+        title_accent: (249, 38, 114),
+        title_author: (102, 217, 239),
+        secondary: (253, 151, 31),
+        link_bright: [
+            (249, 38, 114), (174, 129, 255), (253, 151, 31),
+            (102, 217, 239), (166, 226, 46),
+        ],
+        link_dim: [
+            (90, 40, 60), (70, 55, 90), (85, 60, 35),
+            (50, 75, 85), (60, 80, 40),
+        ],
+        sparkle: [
+            (102, 217, 239), (253, 151, 31), (166, 226, 46),
+            (249, 38, 114), (174, 129, 255),
+        ],
+        meter: [(155, 215, 45), (220, 210, 105), (240, 50, 110)],
+    }
+}

crates/ratatui/src/theme/nord.rs

@@ -0,0 +1,41 @@
+//! Nord palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (46, 52, 64),
+        surface: (59, 66, 82),
+        surface2: (67, 76, 94),
+        fg: (236, 239, 244),
+        fg_dim: (216, 222, 233),
+        fg_muted: (76, 86, 106),
+        accent: (136, 192, 208),    // frost1
+        red: (191, 97, 106),
+        green: (163, 190, 140),
+        yellow: (235, 203, 139),
+        blue: (129, 161, 193),      // frost2
+        purple: (180, 142, 173),
+        cyan: (143, 188, 187),      // frost0
+        orange: (208, 135, 112),
+        tempo_color: (180, 142, 173),
+        bank_color: (129, 161, 193),
+        pattern_color: (143, 188, 187),
+        title_accent: (136, 192, 208),
+        title_author: (129, 161, 193),
+        secondary: (208, 135, 112),
+        link_bright: [
+            (136, 192, 208), (180, 142, 173), (208, 135, 112),
+            (143, 188, 187), (163, 190, 140),
+        ],
+        link_dim: [
+            (55, 75, 85), (70, 60, 70), (75, 55, 50),
+            (55, 75, 75), (60, 75, 55),
+        ],
+        sparkle: [
+            (136, 192, 208), (208, 135, 112), (163, 190, 140),
+            (180, 142, 173), (235, 203, 139),
+        ],
+        meter: [(140, 180, 130), (220, 190, 120), (180, 90, 100)],
+    }
+}

crates/ratatui/src/theme/palette.rs

@@ -0,0 +1,63 @@
+//! Palette definition and color mixing utilities.
+
+use ratatui::style::Color;
+
+/// RGB color triple.
+pub type Rgb = (u8, u8, u8);
+
+/// Base color palette that themes are derived from.
+pub struct Palette {
+    // Core
+    pub bg: Rgb,
+    pub surface: Rgb,
+    pub surface2: Rgb,
+    pub fg: Rgb,
+    pub fg_dim: Rgb,
+    pub fg_muted: Rgb,
+    // Semantic accents
+    pub accent: Rgb,
+    pub red: Rgb,
+    pub green: Rgb,
+    pub yellow: Rgb,
+    pub blue: Rgb,
+    pub purple: Rgb,
+    pub cyan: Rgb,
+    pub orange: Rgb,
+    // Role assignments
+    pub tempo_color: Rgb,
+    pub bank_color: Rgb,
+    pub pattern_color: Rgb,
+    pub title_accent: Rgb,
+    pub title_author: Rgb,
+    pub secondary: Rgb,
+    // Arrays
+    pub link_bright: [Rgb; 5],
+    pub link_dim: [Rgb; 5],
+    pub sparkle: [Rgb; 5],
+    pub meter: [Rgb; 3],
+}
+
+/// Convert an RGB triple to a ratatui [`Color`].
+pub fn rgb(c: Rgb) -> Color {
+    Color::Rgb(c.0, c.1, c.2)
+}
+
+/// Blend `bg` toward `accent` by `amount` (0.0–1.0).
+pub fn tint(bg: Rgb, accent: Rgb, amount: f32) -> Rgb {
+    let mix = |b: u8, a: u8| -> u8 {
+        let v = b as f32 + (a as f32 - b as f32) * amount;
+        v.clamp(0.0, 255.0) as u8
+    };
+    (mix(bg.0, accent.0), mix(bg.1, accent.1), mix(bg.2, accent.2))
+}
+
+/// Linearly interpolate between two colors.
+pub fn mid(a: Rgb, b: Rgb, t: f32) -> Rgb {
+    tint(a, b, t)
+}
+
+/// Darken a color by reducing brightness.
+pub fn darken(c: Rgb, amount: f32) -> Rgb {
+    let d = |v: u8| -> u8 { (v as f32 * (1.0 - amount)).clamp(0.0, 255.0) as u8 };
+    (d(c.0), d(c.1), d(c.2))
+}

crates/ratatui/src/theme/pitch_black.rs

@@ -0,0 +1,41 @@
+//! Pitch Black palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (0, 0, 0),
+        surface: (10, 10, 10),
+        surface2: (21, 21, 21),
+        fg: (230, 230, 230),
+        fg_dim: (160, 160, 160),
+        fg_muted: (100, 100, 100),
+        accent: (80, 230, 230),     // cyan
+        red: (255, 80, 80),
+        green: (80, 255, 120),
+        yellow: (255, 230, 80),
+        blue: (80, 180, 255),
+        purple: (200, 120, 255),
+        cyan: (80, 230, 230),
+        orange: (255, 160, 60),
+        tempo_color: (200, 120, 255),
+        bank_color: (80, 180, 255),
+        pattern_color: (80, 230, 230),
+        title_accent: (80, 230, 230),
+        title_author: (80, 180, 255),
+        secondary: (255, 160, 60),
+        link_bright: [
+            (80, 230, 230), (200, 120, 255), (255, 160, 60),
+            (80, 180, 255), (80, 255, 120),
+        ],
+        link_dim: [
+            (25, 60, 60), (50, 35, 65), (60, 45, 20),
+            (25, 50, 70), (25, 65, 35),
+        ],
+        sparkle: [
+            (80, 230, 230), (255, 160, 60), (80, 255, 120),
+            (200, 120, 255), (80, 180, 255),
+        ],
+        meter: [(70, 240, 110), (245, 220, 75), (245, 75, 75)],
+    }
+}

crates/ratatui/src/theme/rose_pine.rs

@@ -0,0 +1,41 @@
+//! Rose Pine palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (25, 23, 36),
+        surface: (33, 32, 46),
+        surface2: (42, 39, 63),
+        fg: (224, 222, 244),
+        fg_dim: (144, 140, 170),
+        fg_muted: (110, 106, 134),
+        accent: (235, 188, 186),    // rose
+        red: (235, 111, 146),       // love
+        green: (156, 207, 216),     // foam
+        yellow: (246, 193, 119),    // gold
+        blue: (49, 116, 143),       // pine
+        purple: (196, 167, 231),    // iris
+        cyan: (156, 207, 216),      // foam
+        orange: (246, 193, 119),    // gold
+        tempo_color: (196, 167, 231),
+        bank_color: (156, 207, 216),
+        pattern_color: (49, 116, 143),
+        title_accent: (235, 188, 186),
+        title_author: (156, 207, 216),
+        secondary: (235, 111, 146),
+        link_bright: [
+            (235, 111, 146), (196, 167, 231), (246, 193, 119),
+            (156, 207, 216), (49, 116, 143),
+        ],
+        link_dim: [
+            (75, 45, 55), (60, 50, 75), (75, 60, 45),
+            (50, 65, 70), (30, 50, 55),
+        ],
+        sparkle: [
+            (156, 207, 216), (246, 193, 119), (49, 116, 143),
+            (235, 111, 146), (196, 167, 231),
+        ],
+        meter: [(156, 207, 216), (246, 193, 119), (235, 111, 146)],
+    }
+}

crates/ratatui/src/theme/tokyo_night.rs

@@ -0,0 +1,41 @@
+//! Tokyo Night palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (26, 27, 38),
+        surface: (36, 40, 59),
+        surface2: (52, 59, 88),
+        fg: (169, 177, 214),
+        fg_dim: (130, 140, 180),
+        fg_muted: (86, 95, 137),
+        accent: (187, 154, 247),    // purple
+        red: (247, 118, 142),
+        green: (158, 206, 106),
+        yellow: (224, 175, 104),
+        blue: (122, 162, 247),
+        purple: (187, 154, 247),
+        cyan: (125, 207, 255),
+        orange: (224, 175, 104),
+        tempo_color: (187, 154, 247),
+        bank_color: (122, 162, 247),
+        pattern_color: (158, 206, 106),
+        title_accent: (187, 154, 247),
+        title_author: (122, 162, 247),
+        secondary: (224, 175, 104),
+        link_bright: [
+            (247, 118, 142), (187, 154, 247), (224, 175, 104),
+            (125, 207, 255), (158, 206, 106),
+        ],
+        link_dim: [
+            (80, 45, 55), (65, 55, 85), (75, 60, 40),
+            (45, 70, 85), (55, 70, 45),
+        ],
+        sparkle: [
+            (125, 207, 255), (224, 175, 104), (158, 206, 106),
+            (247, 118, 142), (187, 154, 247),
+        ],
+        meter: [(158, 206, 106), (224, 175, 104), (247, 118, 142)],
+    }
+}

crates/ratatui/src/theme/transform.rs

@@ -0,0 +1,99 @@
+//! Hue rotation for palette-wide color transforms.
+
+use super::palette::{Palette, Rgb};
+use super::build::build;
+use super::ThemeColors;
+
+fn rgb_to_hsv(r: u8, g: u8, b: u8) -> (f32, f32, f32) {
+    let r = r as f32 / 255.0;
+    let g = g as f32 / 255.0;
+    let b = b as f32 / 255.0;
+    let max = r.max(g).max(b);
+    let min = r.min(g).min(b);
+    let delta = max - min;
+    let h = if delta == 0.0 {
+        0.0
+    } else if max == r {
+        60.0 * (((g - b) / delta) % 6.0)
+    } else if max == g {
+        60.0 * (((b - r) / delta) + 2.0)
+    } else {
+        60.0 * (((r - g) / delta) + 4.0)
+    };
+    let h = if h < 0.0 { h + 360.0 } else { h };
+    let s = if max == 0.0 { 0.0 } else { delta / max };
+    (h, s, max)
+}
+
+fn hsv_to_rgb(h: f32, s: f32, v: f32) -> (u8, u8, u8) {
+    let c = v * s;
+    let x = c * (1.0 - ((h / 60.0) % 2.0 - 1.0).abs());
+    let m = v - c;
+    let (r, g, b) = if h < 60.0 {
+        (c, x, 0.0)
+    } else if h < 120.0 {
+        (x, c, 0.0)
+    } else if h < 180.0 {
+        (0.0, c, x)
+    } else if h < 240.0 {
+        (0.0, x, c)
+    } else if h < 300.0 {
+        (x, 0.0, c)
+    } else {
+        (c, 0.0, x)
+    };
+    (
+        ((r + m) * 255.0) as u8,
+        ((g + m) * 255.0) as u8,
+        ((b + m) * 255.0) as u8,
+    )
+}
+
+fn rotate(c: Rgb, degrees: f32) -> Rgb {
+    let (h, s, v) = rgb_to_hsv(c.0, c.1, c.2);
+    let new_h = (h + degrees) % 360.0;
+    let new_h = if new_h < 0.0 { new_h + 360.0 } else { new_h };
+    hsv_to_rgb(new_h, s, v)
+}
+
+fn rotate5(arr: [Rgb; 5], d: f32) -> [Rgb; 5] {
+    [rotate(arr[0], d), rotate(arr[1], d), rotate(arr[2], d), rotate(arr[3], d), rotate(arr[4], d)]
+}
+
+fn rotate3(arr: [Rgb; 3], d: f32) -> [Rgb; 3] {
+    [rotate(arr[0], d), rotate(arr[1], d), rotate(arr[2], d)]
+}
+
+/// Build a [`ThemeColors`] with all palette hues rotated by `degrees`.
+pub fn rotate_palette(palette: &Palette, degrees: f32) -> ThemeColors {
+    if degrees == 0.0 {
+        return build(palette);
+    }
+    let d = degrees;
+    build(&Palette {
+        bg: rotate(palette.bg, d),
+        surface: rotate(palette.surface, d),
+        surface2: rotate(palette.surface2, d),
+        fg: rotate(palette.fg, d),
+        fg_dim: rotate(palette.fg_dim, d),
+        fg_muted: rotate(palette.fg_muted, d),
+        accent: rotate(palette.accent, d),
+        red: rotate(palette.red, d),
+        green: rotate(palette.green, d),
+        yellow: rotate(palette.yellow, d),
+        blue: rotate(palette.blue, d),
+        purple: rotate(palette.purple, d),
+        cyan: rotate(palette.cyan, d),
+        orange: rotate(palette.orange, d),
+        tempo_color: rotate(palette.tempo_color, d),
+        bank_color: rotate(palette.bank_color, d),
+        pattern_color: rotate(palette.pattern_color, d),
+        title_accent: rotate(palette.title_accent, d),
+        title_author: rotate(palette.title_author, d),
+        secondary: rotate(palette.secondary, d),
+        link_bright: rotate5(palette.link_bright, d),
+        link_dim: rotate5(palette.link_dim, d),
+        sparkle: rotate5(palette.sparkle, d),
+        meter: rotate3(palette.meter, d),
+    })
+}

crates/ratatui/src/theme/tropicalia.rs

@@ -0,0 +1,41 @@
+//! Tropicalia palette.
+
+use super::palette::Palette;
+
+pub fn palette() -> Palette {
+    Palette {
+        bg: (20, 26, 22),
+        surface: (30, 40, 34),
+        surface2: (44, 56, 48),
+        fg: (235, 225, 200),
+        fg_dim: (155, 145, 120),
+        fg_muted: (85, 80, 62),
+        accent: (230, 50, 120),
+        red: (240, 70, 70),
+        green: (80, 200, 50),
+        yellow: (255, 195, 0),
+        blue: (0, 160, 200),
+        purple: (180, 60, 180),
+        cyan: (0, 200, 170),
+        orange: (255, 140, 30),
+        tempo_color: (230, 50, 120),
+        bank_color: (0, 160, 200),
+        pattern_color: (0, 200, 170),
+        title_accent: (230, 50, 120),
+        title_author: (0, 160, 200),
+        secondary: (255, 140, 30),
+        link_bright: [
+            (230, 50, 120), (0, 160, 200), (255, 140, 30),
+            (0, 200, 170), (80, 200, 50),
+        ],
+        link_dim: [
+            (72, 20, 40), (6, 50, 64), (80, 44, 12),
+            (6, 62, 54), (26, 62, 18),
+        ],
+        sparkle: [
+            (230, 50, 120), (255, 195, 0), (80, 200, 50),
+            (0, 160, 200), (180, 60, 180),
+        ],
+        meter: [(70, 182, 44), (236, 178, 0), (220, 62, 62)],
+    }
+}

crates/ratatui/src/vu_meter.rs

@@ -1,3 +1,6 @@
+//! Stereo VU meter with dB-scaled level display.
+
+use crate::theme;
 use ratatui::buffer::Buffer;
 use ratatui::layout::Rect;
 use ratatui::style::Color;
@@ -7,6 +10,7 @@ const DB_MIN: f32 = -48.0;
 const DB_MAX: f32 = 3.0;
 const DB_RANGE: f32 = DB_MAX - DB_MIN;
 
+/// Stereo VU meter displaying left/right levels in dB.
 pub struct VuMeter {
     left: f32,
     right: f32,
@@ -29,13 +33,13 @@ impl VuMeter {
         (db - DB_MIN) / DB_RANGE
     }
 
-    fn row_to_color(row_position: f32) -> Color {
+    fn row_to_color(row_position: f32, colors: &theme::ThemeColors) -> Color {
         if row_position > 0.9 {
-            Color::Red
+            colors.meter.high
         } else if row_position > 0.75 {
-            Color::Yellow
+            colors.meter.mid
         } else {
-            Color::Green
+            colors.meter.low
         }
     }
 }
@@ -46,6 +50,7 @@ impl Widget for VuMeter {
             return;
         }
 
+        let colors = theme::get();
         let height = area.height as usize;
         let half_width = area.width / 2;
         let gap = 1u16;
@@ -61,7 +66,7 @@ impl Widget for VuMeter {
         for row in 0..height {
             let y = area.y + area.height - 1 - row as u16;
             let row_position = (row as f32 + 0.5) / height as f32;
-            let color = Self::row_to_color(row_position);
+            let color = Self::row_to_color(row_position, &colors);
 
             for col in 0..half_width.saturating_sub(gap) {
                 let x = area.x + col;

crates/ratatui/src/waveform.rs

@@ -0,0 +1,194 @@
+//! Filled waveform display using braille characters.
+
+use crate::scope::Orientation;
+use crate::theme;
+use ratatui::buffer::Buffer;
+use ratatui::layout::Rect;
+use ratatui::style::Color;
+use ratatui::widgets::Widget;
+use std::cell::RefCell;
+
+thread_local! {
+    static PATTERNS: RefCell<Vec<u8>> = const { RefCell::new(Vec::new()) };
+}
+
+/// Filled waveform renderer using braille dot plotting.
+pub struct Waveform<'a> {
+    data: &'a [f32],
+    orientation: Orientation,
+    color: Option<Color>,
+    gain: f32,
+}
+
+impl<'a> Waveform<'a> {
+    pub fn new(data: &'a [f32]) -> Self {
+        Self {
+            data,
+            orientation: Orientation::Horizontal,
+            color: None,
+            gain: 1.0,
+        }
+    }
+
+    pub fn orientation(mut self, o: Orientation) -> Self {
+        self.orientation = o;
+        self
+    }
+
+    pub fn color(mut self, c: Color) -> Self {
+        self.color = Some(c);
+        self
+    }
+
+    pub fn gain(mut self, g: f32) -> Self {
+        self.gain = g;
+        self
+    }
+}
+
+impl Widget for Waveform<'_> {
+    fn render(self, area: Rect, buf: &mut Buffer) {
+        if area.width == 0 || area.height == 0 || self.data.is_empty() {
+            return;
+        }
+
+        let color = self.color.unwrap_or_else(|| theme::get().meter.low);
+
+        match self.orientation {
+            Orientation::Horizontal => {
+                render_horizontal(self.data, area, buf, color, self.gain)
+            }
+            Orientation::Vertical => render_vertical(self.data, area, buf, color, self.gain),
+        }
+    }
+}
+
+fn braille_bit(dot_x: usize, dot_y: usize) -> u8 {
+    match (dot_x, dot_y) {
+        (0, 0) => 0x01,
+        (0, 1) => 0x02,
+        (0, 2) => 0x04,
+        (0, 3) => 0x40,
+        (1, 0) => 0x08,
+        (1, 1) => 0x10,
+        (1, 2) => 0x20,
+        (1, 3) => 0x80,
+        _ => unreachable!(),
+    }
+}
+
+fn render_horizontal(data: &[f32], area: Rect, buf: &mut Buffer, color: Color, gain: f32) {
+    let width = area.width as usize;
+    let height = area.height as usize;
+    let fine_width = width * 2;
+    let fine_height = height * 4;
+    let len = data.len();
+
+    PATTERNS.with(|p| {
+        let mut patterns = p.borrow_mut();
+        patterns.clear();
+        patterns.resize(width * height, 0);
+
+        for fine_x in 0..fine_width {
+            let start = fine_x * len / fine_width;
+            let end = ((fine_x + 1) * len / fine_width).max(start + 1).min(len);
+            let slice = &data[start..end];
+
+            let mut min_s = f32::MAX;
+            let mut max_s = f32::MIN;
+            for &s in slice {
+                let s = (s * gain).clamp(-1.0, 1.0);
+                if s < min_s {
+                    min_s = s;
+                }
+                if s > max_s {
+                    max_s = s;
+                }
+            }
+
+            let fy_top = ((1.0 - max_s) * 0.5 * (fine_height - 1) as f32).round() as usize;
+            let fy_bot = ((1.0 - min_s) * 0.5 * (fine_height - 1) as f32).round() as usize;
+            let fy_top = fy_top.min(fine_height - 1);
+            let fy_bot = fy_bot.min(fine_height - 1);
+
+            let char_x = fine_x / 2;
+            let dot_x = fine_x % 2;
+
+            for fy in fy_top..=fy_bot {
+                let char_y = fy / 4;
+                let dot_y = fy % 4;
+                patterns[char_y * width + char_x] |= braille_bit(dot_x, dot_y);
+            }
+        }
+
+        for cy in 0..height {
+            for cx in 0..width {
+                let pattern = patterns[cy * width + cx];
+                if pattern != 0 {
+                    let ch = char::from_u32(0x2800 + pattern as u32).unwrap_or(' ');
+                    buf[(area.x + cx as u16, area.y + cy as u16)]
+                        .set_char(ch)
+                        .set_fg(color);
+                }
+            }
+        }
+    });
+}
+
+fn render_vertical(data: &[f32], area: Rect, buf: &mut Buffer, color: Color, gain: f32) {
+    let width = area.width as usize;
+    let height = area.height as usize;
+    let fine_width = width * 2;
+    let fine_height = height * 4;
+    let len = data.len();
+
+    PATTERNS.with(|p| {
+        let mut patterns = p.borrow_mut();
+        patterns.clear();
+        patterns.resize(width * height, 0);
+
+        for fine_y in 0..fine_height {
+            let start = fine_y * len / fine_height;
+            let end = ((fine_y + 1) * len / fine_height).max(start + 1).min(len);
+            let slice = &data[start..end];
+
+            let mut min_s = f32::MAX;
+            let mut max_s = f32::MIN;
+            for &s in slice {
+                let s = (s * gain).clamp(-1.0, 1.0);
+                if s < min_s {
+                    min_s = s;
+                }
+                if s > max_s {
+                    max_s = s;
+                }
+            }
+
+            let fx_left = ((min_s + 1.0) * 0.5 * (fine_width - 1) as f32).round() as usize;
+            let fx_right = ((max_s + 1.0) * 0.5 * (fine_width - 1) as f32).round() as usize;
+            let fx_left = fx_left.min(fine_width - 1);
+            let fx_right = fx_right.min(fine_width - 1);
+
+            let char_y = fine_y / 4;
+            let dot_y = fine_y % 4;
+
+            for fx in fx_left..=fx_right {
+                let char_x = fx / 2;
+                let dot_x = fx % 2;
+                patterns[char_y * width + char_x] |= braille_bit(dot_x, dot_y);
+            }
+        }
+
+        for cy in 0..height {
+            for cx in 0..width {
+                let pattern = patterns[cy * width + cx];
+                if pattern != 0 {
+                    let ch = char::from_u32(0x2800 + pattern as u32).unwrap_or(' ');
+                    buf[(area.x + cx as u16, area.y + cy as u16)]
+                        .set_char(ch)
+                        .set_fg(color);
+                }
+            }
+        }
+    });
+}

demos/02.cagire

@@ -0,0 +1 @@
+{"version":1,"banks":[],"tempo":120.0,"playing_patterns":[[0,0]],"prelude":""}

demos/03.cagire

@@ -0,0 +1 @@
+{"version":1,"banks":[],"tempo":120.0,"playing_patterns":[[0,0]],"prelude":""}