Fixing subtle bugs

crates/forth/src/compiler.rs

@@ -95,7 +95,6 @@ fn compile(tokens: &[Token], dict: &Dictionary) -> Result<Vec<Op>, String> {
     let mut ops = Vec::new();
     let mut i = 0;
     let mut list_depth: usize = 0;
-    let mut pipe_parity = false;
 
     while i < tokens.len() {
         match &tokens[i] {
@@ -131,13 +130,6 @@ fn compile(tokens: &[Token], dict: &Dictionary) -> Result<Vec<Op>, String> {
                         ops.push(Op::Branch(else_ops.len()));
                         ops.extend(else_ops);
                     }
-                } else if word == "|" {
-                    if pipe_parity {
-                        ops.push(Op::InternalCycleEnd);
-                    } else {
-                        ops.push(Op::ListStart);
-                    }
-                    pipe_parity = !pipe_parity;
                 } else if is_list_start(word) {
                     ops.push(Op::ListStart);
                     list_depth += 1;

crates/forth/src/lib.rs

@@ -6,5 +6,5 @@ mod vm;
 mod words;
 
 pub use types::{Dictionary, ExecutionTrace, Rng, SourceSpan, StepContext, Value, Variables};
-pub use vm::{EmissionCounter, Forth};
+pub use vm::Forth;
 pub use words::{Word, WordCompile, WORDS};

crates/forth/src/ops.rs

@@ -84,9 +84,9 @@ pub enum Op {
     Loop,
     Degree(&'static [i64]),
     Oct,
-    InternalCycleEnd,
     DivStart,
     DivEnd,
     StackStart,
     EmitN,
+    ClearCmd,
 }

crates/forth/src/types.rs

@@ -48,7 +48,6 @@ pub enum Value {
     Str(String, Option<SourceSpan>),
     Marker,
     Quotation(Vec<Op>, Option<SourceSpan>),
-    Alternator(Vec<Value>),
 }
 
 impl PartialEq for Value {
@@ -59,7 +58,6 @@ impl PartialEq for Value {
             (Value::Str(a, _), Value::Str(b, _)) => a == b,
             (Value::Marker, Value::Marker) => true,
             (Value::Quotation(a, _), Value::Quotation(b, _)) => a == b,
-            (Value::Alternator(a), Value::Alternator(b)) => a == b,
             _ => false,
         }
     }
@@ -96,7 +94,6 @@ impl Value {
             Value::Str(s, _) => !s.is_empty(),
             Value::Marker => false,
             Value::Quotation(..) => true,
-            Value::Alternator(items) => !items.is_empty(),
         }
     }
 
@@ -111,14 +108,13 @@ impl Value {
             Value::Str(s, _) => s.clone(),
             Value::Marker => String::new(),
             Value::Quotation(..) => String::new(),
-            Value::Alternator(_) => String::new(),
         }
     }
 
     pub(super) fn span(&self) -> Option<SourceSpan> {
         match self {
-            Value::Int(_, s) | Value::Float(_, s) | Value::Str(_, s) => *s,
-            Value::Marker | Value::Quotation(..) | Value::Alternator(_) => None,
+            Value::Int(_, s) | Value::Float(_, s) | Value::Str(_, s) | Value::Quotation(_, s) => *s,
+            Value::Marker => None,
         }
     }
 }
@@ -139,7 +135,14 @@ impl CmdRegister {
     }
 
     pub(super) fn snapshot(&self) -> Option<(Value, Vec<(String, Value)>)> {
-        self.sound.as_ref().map(|s| (s.clone(), self.params.clone()))
+        self.sound
+            .as_ref()
+            .map(|s| (s.clone(), self.params.clone()))
+    }
+
+    pub(super) fn clear(&mut self) {
+        self.sound = None;
+        self.params.clear();
     }
 }
 

crates/forth/src/words.rs

@@ -1222,6 +1222,54 @@ pub const WORDS: &[Word] = &[
         example: "0.3 bpr",
         compile: Param,
     },
+    Word {
+        name: "llpf",
+        category: "Ladder Filter",
+        stack: "(f --)",
+        desc: "Set ladder lowpass frequency",
+        example: "2000 llpf",
+        compile: Param,
+    },
+    Word {
+        name: "llpq",
+        category: "Ladder Filter",
+        stack: "(f --)",
+        desc: "Set ladder lowpass resonance",
+        example: "0.5 llpq",
+        compile: Param,
+    },
+    Word {
+        name: "lhpf",
+        category: "Ladder Filter",
+        stack: "(f --)",
+        desc: "Set ladder highpass frequency",
+        example: "100 lhpf",
+        compile: Param,
+    },
+    Word {
+        name: "lhpq",
+        category: "Ladder Filter",
+        stack: "(f --)",
+        desc: "Set ladder highpass resonance",
+        example: "0.5 lhpq",
+        compile: Param,
+    },
+    Word {
+        name: "lbpf",
+        category: "Ladder Filter",
+        stack: "(f --)",
+        desc: "Set ladder bandpass frequency",
+        example: "1000 lbpf",
+        compile: Param,
+    },
+    Word {
+        name: "lbpq",
+        category: "Ladder Filter",
+        stack: "(f --)",
+        desc: "Set ladder bandpass resonance",
+        example: "0.5 lbpq",
+        compile: Param,
+    },
     Word {
         name: "ftype",
         category: "Filter",
@@ -1486,6 +1534,54 @@ pub const WORDS: &[Word] = &[
         example: "0.02 chorusdelay",
         compile: Param,
     },
+    Word {
+        name: "eqlo",
+        category: "EQ",
+        stack: "(f --)",
+        desc: "Set low shelf gain (dB)",
+        example: "3 eqlo",
+        compile: Param,
+    },
+    Word {
+        name: "eqmid",
+        category: "EQ",
+        stack: "(f --)",
+        desc: "Set mid peak gain (dB)",
+        example: "-2 eqmid",
+        compile: Param,
+    },
+    Word {
+        name: "eqhi",
+        category: "EQ",
+        stack: "(f --)",
+        desc: "Set high shelf gain (dB)",
+        example: "1 eqhi",
+        compile: Param,
+    },
+    Word {
+        name: "tilt",
+        category: "EQ",
+        stack: "(f --)",
+        desc: "Set tilt EQ (-1 dark, 1 bright)",
+        example: "-0.5 tilt",
+        compile: Param,
+    },
+    Word {
+        name: "width",
+        category: "Stereo",
+        stack: "(f --)",
+        desc: "Set stereo width (0 mono, 1 normal, 2 wide)",
+        example: "0 width",
+        compile: Param,
+    },
+    Word {
+        name: "haas",
+        category: "Stereo",
+        stack: "(f --)",
+        desc: "Set Haas delay in ms (spatial placement)",
+        example: "8 haas",
+        compile: Param,
+    },
     Word {
         name: "comb",
         category: "Filter",
@@ -1718,6 +1814,14 @@ pub const WORDS: &[Word] = &[
         example: "1 reset",
         compile: Param,
     },
+    Word {
+        name: "clear",
+        category: "Sound",
+        stack: "(--)",
+        desc: "Clear sound register (sound and all params)",
+        example: "\"kick\" s 0.5 gain . clear \"hat\" s .",
+        compile: Simple,
+    },
     // Quotation execution
     Word {
         name: "apply",
@@ -1823,6 +1927,7 @@ pub(super) fn simple_op(name: &str) -> Option<Op> {
         "stack" => Op::StackStart,
         "~" => Op::DivEnd,
         ".!" => Op::EmitN,
+        "clear" => Op::ClearCmd,
         _ => return None,
     })
 }
@@ -1902,11 +2007,28 @@ fn parse_interval(name: &str) -> Option<i64> {
     Some(simple)
 }
 
-pub(super) fn compile_word(name: &str, span: Option<SourceSpan>, ops: &mut Vec<Op>, dict: &Dictionary) -> bool {
+pub(super) 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; }
+        "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;
+        }
         _ => {}
     }
 

crates/project/src/file.rs

@@ -35,11 +35,13 @@ impl From<&Project> for ProjectFile {
 
 impl From<ProjectFile> for Project {
     fn from(file: ProjectFile) -> Self {
-        Self {
+        let mut project = Self {
             banks: file.banks,
             sample_paths: file.sample_paths,
             tempo: file.tempo,
-        }
+        };
+        project.normalize();
+        project
     }
 }
 

crates/project/src/project.rs

@@ -282,4 +282,14 @@ impl Project {
     pub fn pattern_at_mut(&mut self, bank: usize, pattern: usize) -> &mut Pattern {
         &mut self.banks[bank].patterns[pattern]
     }
+
+    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/ratatui/Cargo.toml

@@ -4,6 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+rand = "0.8"
 ratatui = "0.29"
 regex = "1"
 tui-textarea = { version = "0.7", features = ["search"] }

crates/ratatui/src/lib.rs

@@ -6,6 +6,7 @@ mod modal;
 mod nav_minimap;
 mod sample_browser;
 mod scope;
+mod sparkles;
 mod spectrum;
 mod text_input;
 mod vu_meter;
@@ -18,6 +19,7 @@ pub use modal::ModalFrame;
 pub use nav_minimap::{NavMinimap, NavTile};
 pub use sample_browser::{SampleBrowser, TreeLine, TreeLineKind};
 pub use scope::{Orientation, Scope};
+pub use sparkles::Sparkles;
 pub use spectrum::Spectrum;
 pub use text_input::TextInputModal;
 pub use vu_meter::VuMeter;

crates/ratatui/src/sparkles.rs

@@ -0,0 +1,65 @@
+use rand::Rng;
+use ratatui::buffer::Buffer;
+use ratatui::layout::Rect;
+use ratatui::style::{Color, Style};
+use ratatui::widgets::Widget;
+
+const CHARS: &[char] = &['·', '✦', '✧', '°', '•', '+', '⋆', '*'];
+const COLORS: &[(u8, u8, u8)] = &[
+    (200, 220, 255),
+    (255, 200, 150),
+    (150, 255, 200),
+    (255, 150, 200),
+    (200, 150, 255),
+];
+
+struct Sparkle {
+    x: u16,
+    y: u16,
+    char_idx: usize,
+    life: u8,
+}
+
+#[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) {
+        for sparkle in &self.sparkles {
+            let color = COLORS[sparkle.char_idx % COLORS.len()];
+            let intensity = (sparkle.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 sparkle.x < area.width && sparkle.y < area.height {
+                let x = area.x + sparkle.x;
+                let y = area.y + sparkle.y;
+                let ch = CHARS[sparkle.char_idx];
+                buf[(x, y)].set_char(ch).set_style(Style::new().fg(Color::Rgb(r, g, b)));
+            }
+        }
+    }
+}

src/app.rs

@@ -53,7 +53,8 @@ impl App {
         let variables = Arc::new(Mutex::new(HashMap::new()));
         let dict = Arc::new(Mutex::new(HashMap::new()));
         let rng = Arc::new(Mutex::new(StdRng::seed_from_u64(0)));
-        let script_engine = ScriptEngine::new(Arc::clone(&variables), Arc::clone(&dict), Arc::clone(&rng));
+        let script_engine =
+            ScriptEngine::new(Arc::clone(&variables), Arc::clone(&dict), Arc::clone(&rng));
         let live_keys = Arc::new(LiveKeyState::new());
 
         Self {
@@ -251,7 +252,9 @@ impl App {
                 })
                 .collect();
             self.editor_ctx.editor.set_candidates(candidates);
-            self.editor_ctx.editor.set_completion_enabled(self.ui.show_completion);
+            self.editor_ctx
+                .editor
+                .set_completion_enabled(self.ui.show_completion);
         }
     }
 
@@ -333,7 +336,8 @@ impl App {
                 {
                     step.command = None;
                 }
-                self.ui.flash(&format!("Script error: {e}"), 300, FlashKind::Error);
+                self.ui
+                    .flash(&format!("Script error: {e}"), 300, FlashKind::Error);
             }
         }
     }
@@ -409,21 +413,14 @@ impl App {
         let is_playing = snapshot.is_playing(bank, pattern);
         let pattern_data = self.project_state.project.pattern_at(bank, pattern);
 
-        let existing = self
-            .playback
-            .staged_changes
-            .iter()
-            .position(|c| {
-                c.change.pattern_id().bank == bank && c.change.pattern_id().pattern == pattern
-            });
+        let existing = self.playback.staged_changes.iter().position(|c| {
+            c.change.pattern_id().bank == bank && c.change.pattern_id().pattern == pattern
+        });
 
         if let Some(idx) = existing {
             self.playback.staged_changes.remove(idx);
-            self.ui.set_status(format!(
-                "B{:02}:P{:02} unstaged",
-                bank + 1,
-                pattern + 1
-            ));
+            self.ui
+                .set_status(format!("B{:02}:P{:02} unstaged", bank + 1, pattern + 1));
         } else if is_playing {
             self.playback.staged_changes.push(StagedChange {
                 change: PatternChange::Stop { bank, pattern },
@@ -467,7 +464,8 @@ impl App {
         }
         let count = self.playback.staged_changes.len();
         self.playback.staged_changes.clear();
-        self.ui.set_status(format!("Cleared {count} staged changes"));
+        self.ui
+            .set_status(format!("Cleared {count} staged changes"));
     }
 
     pub fn select_edit_pattern(&mut self, pattern: usize) {
@@ -705,8 +703,11 @@ impl App {
         }
         self.project_state.mark_dirty(bank, pattern);
         self.load_step_to_editor();
-        self.ui
-            .flash(&format!("Linked to step {:02}", copied.step + 1), 150, FlashKind::Success);
+        self.ui.flash(
+            &format!("Linked to step {:02}", copied.step + 1),
+            150,
+            FlashKind::Success,
+        );
     }
 
     pub fn harden_step(&mut self) {
@@ -896,7 +897,8 @@ impl App {
                     // If current step is a shallow copy, navigate to source step
                     let pattern = &self.project_state.project.banks[self.editor_ctx.bank].patterns
                         [self.editor_ctx.pattern];
-                    if let Some(source) = pattern.steps[self.editor_ctx.step].source {
+                    if let Some(source) = pattern.step(self.editor_ctx.step).and_then(|s| s.source)
+                    {
                         self.editor_ctx.step = source;
                     }
                     self.load_step_to_editor();

src/engine/audio.rs

@@ -160,16 +160,6 @@ pub struct AnalysisHandle {
     thread: Option<JoinHandle<()>>,
 }
 
-impl AnalysisHandle {
-    #[allow(dead_code)]
-    pub fn shutdown(mut self) {
-        self.running.store(false, Ordering::SeqCst);
-        if let Some(t) = self.thread.take() {
-            let _ = t.join();
-        }
-    }
-}
-
 impl Drop for AnalysisHandle {
     fn drop(&mut self) {
         self.running.store(false, Ordering::SeqCst);

src/main.rs

@@ -210,7 +210,10 @@ fn main() -> io::Result<()> {
         app.flush_queued_changes(&sequencer.cmd_tx);
         app.flush_dirty_patterns(&sequencer.cmd_tx);
 
-        terminal.draw(|frame| views::render(frame, &mut app, &link, &seq_snapshot))?;
+        if app.ui.show_title {
+            app.ui.sparkles.tick(terminal.get_frame().area());
+        }
+        terminal.draw(|frame| views::render(frame, &app, &link, &seq_snapshot))?;
 
         if event::poll(Duration::from_millis(app.audio.config.refresh_rate.millis()))? {
             match event::read()? {

src/state/ui.rs

@@ -1,5 +1,7 @@
 use std::time::{Duration, Instant};
 
+use cagire_ratatui::Sparkles;
+
 use crate::state::Modal;
 
 #[derive(Debug, Clone, Copy, Default, PartialEq, Eq)]
@@ -10,13 +12,6 @@ pub enum FlashKind {
     Info,
 }
 
-pub struct Sparkle {
-    pub x: u16,
-    pub y: u16,
-    pub char_idx: usize,
-    pub life: u8,
-}
-
 #[derive(Debug, Default, Clone, Copy, PartialEq, Eq)]
 pub enum DictFocus {
     #[default]
@@ -25,7 +20,7 @@ pub enum DictFocus {
 }
 
 pub struct UiState {
-    pub sparkles: Vec<Sparkle>,
+    pub sparkles: Sparkles,
     pub status_message: Option<String>,
     pub flash_until: Option<Instant>,
     pub flash_kind: FlashKind,
@@ -46,7 +41,7 @@ pub struct UiState {
 impl Default for UiState {
     fn default() -> Self {
         Self {
-            sparkles: Vec::new(),
+            sparkles: Sparkles::default(),
             status_message: None,
             flash_until: None,
             flash_kind: FlashKind::Success,

src/views/engine_view.rs

@@ -156,7 +156,7 @@ fn render_devices(frame: &mut Frame, app: &App, area: Rect) {
     let input_focused = section_focused && app.audio.device_kind == DeviceKind::Input;
 
     render_device_column(
-        frame, app, output_col,
+        frame, output_col,
         "Output", &app.audio.output_devices,
         app.audio.current_output_device_index(),
         app.audio.output_list.cursor,
@@ -172,7 +172,7 @@ fn render_devices(frame: &mut Frame, app: &App, area: Rect) {
     frame.render_widget(Paragraph::new(sep_lines), separator);
 
     render_device_column(
-        frame, app, input_col,
+        frame, input_col,
         "Input", &app.audio.input_devices,
         app.audio.current_input_device_index(),
         app.audio.input_list.cursor,
@@ -184,7 +184,6 @@ fn render_devices(frame: &mut Frame, app: &App, area: Rect) {
 
 fn render_device_column(
     frame: &mut Frame,
-    _app: &App,
     area: Rect,
     label: &str,
     devices: &[doux::audio::AudioDeviceInfo],

src/views/highlight.rs

@@ -51,11 +51,57 @@ const OPERATORS: &[&str] = &[
     "or", "not", "ceil", "floor", "round", "mtof", "ftom",
 ];
 const KEYWORDS: &[&str] = &[
-    "if", "else", "then", "emit", "rand", "rrand", "seed", "cycle", "choose", "chance", "[", "]",
-    "zoom", "scale!", "stack", "echo", "necho", "for", "div", "each", "at", "pop", "adsr", "ad",
-    "?", "!?", "<<", ">>", "|", "@", "!", "pcycle", "tempo!", "prob", "sometimes", "often",
-    "rarely", "almostAlways", "almostNever", "always", "never", "coin", "fill", "iter", "every",
-    "gt", "lt", ":", ";", "apply",
+    "if",
+    "else",
+    "then",
+    "emit",
+    "rand",
+    "rrand",
+    "seed",
+    "cycle",
+    "choose",
+    "chance",
+    "[",
+    "]",
+    "zoom",
+    "scale!",
+    "stack",
+    "echo",
+    "necho",
+    "for",
+    "div",
+    "each",
+    "at",
+    "pop",
+    "adsr",
+    "ad",
+    "?",
+    "!?",
+    "<<",
+    ">>",
+    "|",
+    "@",
+    "!",
+    "pcycle",
+    "tempo!",
+    "prob",
+    "sometimes",
+    "often",
+    "rarely",
+    "almostAlways",
+    "almostNever",
+    "always",
+    "never",
+    "coin",
+    "fill",
+    "iter",
+    "every",
+    "gt",
+    "lt",
+    ":",
+    ";",
+    "apply",
+    "clear",
 ];
 const SOUND: &[&str] = &["sound", "s"];
 const CONTEXT: &[&str] = &[
@@ -168,6 +214,23 @@ const PARAMS: &[&str] = &[
     "n",
     "cut",
     "reset",
+    "eqlo",
+    "eqmid",
+    "eqhi",
+    "tilt",
+    "width",
+    "haas",
+    "llpf",
+    "llpq",
+    "lhpf",
+    "lhpq",
+    "lbpf",
+    "lbpq",
+    "sub",
+    "suboct",
+    "subwave",
+    "bank",
+    "loop",
 ];
 const INTERVALS: &[&str] = &[
     "P1", "unison", "m2", "M2", "m3", "M3", "P4", "aug4", "dim5", "tritone", "P5", "m6", "M6",
@@ -176,34 +239,27 @@ const INTERVALS: &[&str] = &[
 ];
 
 const NOTES: &[&str] = &[
-    "c0", "c1", "c2", "c3", "c4", "c5", "c6", "c7", "c8", "c9",
-    "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "d8", "d9",
-    "e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7", "e8", "e9",
-    "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "f9",
-    "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", "g8", "g9",
-    "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", "a8", "a9",
-    "b0", "b1", "b2", "b3", "b4", "b5", "b6", "b7", "b8", "b9",
-    "cs0", "cs1", "cs2", "cs3", "cs4", "cs5", "cs6", "cs7", "cs8", "cs9",
-    "ds0", "ds1", "ds2", "ds3", "ds4", "ds5", "ds6", "ds7", "ds8", "ds9",
-    "es0", "es1", "es2", "es3", "es4", "es5", "es6", "es7", "es8", "es9",
-    "fs0", "fs1", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", "fs8", "fs9",
-    "gs0", "gs1", "gs2", "gs3", "gs4", "gs5", "gs6", "gs7", "gs8", "gs9",
-    "as0", "as1", "as2", "as3", "as4", "as5", "as6", "as7", "as8", "as9",
-    "bs0", "bs1", "bs2", "bs3", "bs4", "bs5", "bs6", "bs7", "bs8", "bs9",
-    "cb0", "cb1", "cb2", "cb3", "cb4", "cb5", "cb6", "cb7", "cb8", "cb9",
-    "db0", "db1", "db2", "db3", "db4", "db5", "db6", "db7", "db8", "db9",
-    "eb0", "eb1", "eb2", "eb3", "eb4", "eb5", "eb6", "eb7", "eb8", "eb9",
-    "fb0", "fb1", "fb2", "fb3", "fb4", "fb5", "fb6", "fb7", "fb8", "fb9",
-    "gb0", "gb1", "gb2", "gb3", "gb4", "gb5", "gb6", "gb7", "gb8", "gb9",
-    "ab0", "ab1", "ab2", "ab3", "ab4", "ab5", "ab6", "ab7", "ab8", "ab9",
-    "bb0", "bb1", "bb2", "bb3", "bb4", "bb5", "bb6", "bb7", "bb8", "bb9",
-    "c#0", "c#1", "c#2", "c#3", "c#4", "c#5", "c#6", "c#7", "c#8", "c#9",
-    "d#0", "d#1", "d#2", "d#3", "d#4", "d#5", "d#6", "d#7", "d#8", "d#9",
-    "e#0", "e#1", "e#2", "e#3", "e#4", "e#5", "e#6", "e#7", "e#8", "e#9",
-    "f#0", "f#1", "f#2", "f#3", "f#4", "f#5", "f#6", "f#7", "f#8", "f#9",
-    "g#0", "g#1", "g#2", "g#3", "g#4", "g#5", "g#6", "g#7", "g#8", "g#9",
-    "a#0", "a#1", "a#2", "a#3", "a#4", "a#5", "a#6", "a#7", "a#8", "a#9",
-    "b#0", "b#1", "b#2", "b#3", "b#4", "b#5", "b#6", "b#7", "b#8", "b#9",
+    "c0", "c1", "c2", "c3", "c4", "c5", "c6", "c7", "c8", "c9", "d0", "d1", "d2", "d3", "d4", "d5",
+    "d6", "d7", "d8", "d9", "e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7", "e8", "e9", "f0", "f1",
+    "f2", "f3", "f4", "f5", "f6", "f7", "f8", "f9", "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
+    "g8", "g9", "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", "a8", "a9", "b0", "b1", "b2", "b3",
+    "b4", "b5", "b6", "b7", "b8", "b9", "cs0", "cs1", "cs2", "cs3", "cs4", "cs5", "cs6", "cs7",
+    "cs8", "cs9", "ds0", "ds1", "ds2", "ds3", "ds4", "ds5", "ds6", "ds7", "ds8", "ds9", "es0",
+    "es1", "es2", "es3", "es4", "es5", "es6", "es7", "es8", "es9", "fs0", "fs1", "fs2", "fs3",
+    "fs4", "fs5", "fs6", "fs7", "fs8", "fs9", "gs0", "gs1", "gs2", "gs3", "gs4", "gs5", "gs6",
+    "gs7", "gs8", "gs9", "as0", "as1", "as2", "as3", "as4", "as5", "as6", "as7", "as8", "as9",
+    "bs0", "bs1", "bs2", "bs3", "bs4", "bs5", "bs6", "bs7", "bs8", "bs9", "cb0", "cb1", "cb2",
+    "cb3", "cb4", "cb5", "cb6", "cb7", "cb8", "cb9", "db0", "db1", "db2", "db3", "db4", "db5",
+    "db6", "db7", "db8", "db9", "eb0", "eb1", "eb2", "eb3", "eb4", "eb5", "eb6", "eb7", "eb8",
+    "eb9", "fb0", "fb1", "fb2", "fb3", "fb4", "fb5", "fb6", "fb7", "fb8", "fb9", "gb0", "gb1",
+    "gb2", "gb3", "gb4", "gb5", "gb6", "gb7", "gb8", "gb9", "ab0", "ab1", "ab2", "ab3", "ab4",
+    "ab5", "ab6", "ab7", "ab8", "ab9", "bb0", "bb1", "bb2", "bb3", "bb4", "bb5", "bb6", "bb7",
+    "bb8", "bb9", "c#0", "c#1", "c#2", "c#3", "c#4", "c#5", "c#6", "c#7", "c#8", "c#9", "d#0",
+    "d#1", "d#2", "d#3", "d#4", "d#5", "d#6", "d#7", "d#8", "d#9", "e#0", "e#1", "e#2", "e#3",
+    "e#4", "e#5", "e#6", "e#7", "e#8", "e#9", "f#0", "f#1", "f#2", "f#3", "f#4", "f#5", "f#6",
+    "f#7", "f#8", "f#9", "g#0", "g#1", "g#2", "g#3", "g#4", "g#5", "g#6", "g#7", "g#8", "g#9",
+    "a#0", "a#1", "a#2", "a#3", "a#4", "a#5", "a#6", "a#7", "a#8", "a#9", "b#0", "b#1", "b#2",
+    "b#3", "b#4", "b#5", "b#6", "b#7", "b#8", "b#9",
 ];
 
 pub fn tokenize_line(line: &str) -> Vec<Token> {

src/views/main_view.rs

@@ -7,7 +7,7 @@ use crate::app::App;
 use crate::engine::SequencerSnapshot;
 use crate::widgets::{Orientation, Scope, Spectrum, VuMeter};
 
-pub fn render(frame: &mut Frame, app: &mut App, snapshot: &SequencerSnapshot, area: Rect) {
+pub fn render(frame: &mut Frame, app: &App, snapshot: &SequencerSnapshot, area: Rect) {
     let [left_area, _spacer, vu_area] = Layout::horizontal([
         Constraint::Fill(1),
         Constraint::Length(2),

src/views/render.rs

@@ -28,14 +28,14 @@ fn adjust_spans_for_line(spans: &[SourceSpan], line_start: usize, line_len: usiz
     }).collect()
 }
 
-pub fn render(frame: &mut Frame, app: &mut App, link: &LinkState, snapshot: &SequencerSnapshot) {
+pub fn render(frame: &mut Frame, app: &App, link: &LinkState, snapshot: &SequencerSnapshot) {
     let term = frame.area();
     let blank = " ".repeat(term.width as usize);
     let lines: Vec<Line> = (0..term.height).map(|_| Line::raw(&blank)).collect();
     frame.render_widget(Paragraph::new(lines), term);
 
     if app.ui.show_title {
-        title_view::render(frame, term, &mut app.ui);
+        title_view::render(frame, term, &app.ui);
         return;
     }
 

src/views/title_view.rs

@@ -1,4 +1,3 @@
-use rand::Rng;
 use ratatui::layout::{Alignment, Constraint, Layout, Rect};
 use ratatui::style::{Color, Style, Stylize};
 use ratatui::text::{Line, Span};
@@ -6,56 +5,11 @@ use ratatui::widgets::Paragraph;
 use ratatui::Frame;
 use tui_big_text::{BigText, PixelSize};
 
-use crate::state::ui::{Sparkle, UiState};
+use crate::state::ui::UiState;
 
-const SPARKLE_CHARS: &[char] = &['·', '✦', '✧', '°', '•', '+', '⋆', '*'];
-const SPARKLE_COLORS: &[(u8, u8, u8)] = &[
-    (200, 220, 255),
-    (255, 200, 150),
-    (150, 255, 200),
-    (255, 150, 200),
-    (200, 150, 255),
-];
+pub fn render(frame: &mut Frame, area: Rect, ui: &UiState) {
+    frame.render_widget(&ui.sparkles, area);
 
-pub fn render(frame: &mut Frame, area: Rect, ui: &mut UiState) {
-    let mut rng = rand::thread_rng();
-
-    // Spawn new sparkles
-    for _ in 0..3 {
-        if rng.gen_bool(0.6) {
-            let x = rng.gen_range(0..area.width);
-            let y = rng.gen_range(0..area.height);
-            ui.sparkles.push(Sparkle {
-                x,
-                y,
-                char_idx: rng.gen_range(0..SPARKLE_CHARS.len()),
-                life: rng.gen_range(15..40),
-            });
-        }
-    }
-
-    // Age and remove dead sparkles
-    ui.sparkles.iter_mut().for_each(|s| s.life = s.life.saturating_sub(1));
-    ui.sparkles.retain(|s| s.life > 0);
-
-    // Render sparkles
-    for sparkle in &ui.sparkles {
-        let color = SPARKLE_COLORS[sparkle.char_idx % SPARKLE_COLORS.len()];
-        let intensity = (sparkle.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;
-
-        let ch = SPARKLE_CHARS[sparkle.char_idx];
-        let span = Span::styled(ch.to_string(), Style::new().fg(Color::Rgb(r, g, b)));
-        let para = Paragraph::new(Line::from(span));
-        let sparkle_area = Rect::new(sparkle.x, sparkle.y, 1, 1);
-        if sparkle_area.x < area.width && sparkle_area.y < area.height {
-            frame.render_widget(para, sparkle_area);
-        }
-    }
-
-    // Main content
     let author_style = Style::new().fg(Color::Rgb(180, 140, 200));
     let link_style = Style::new().fg(Color::Rgb(120, 200, 180));
     let license_style = Style::new().fg(Color::Rgb(200, 160, 100));

tests/forth/harness.rs

@@ -1,6 +1,6 @@
 use rand::rngs::StdRng;
 use rand::SeedableRng;
-use cagire::forth::{Dictionary, EmissionCounter, Forth, Rng, StepContext, Value, Variables};
+use cagire::forth::{Dictionary, Forth, Rng, StepContext, Value, Variables};
 use std::collections::HashMap;
 use std::sync::{Arc, Mutex};
 
@@ -46,14 +46,6 @@ pub fn forth_seeded(seed: u64) -> Forth {
     Forth::new(new_vars(), new_dict(), seeded_rng(seed))
 }
 
-pub fn new_emission_counter() -> EmissionCounter {
-    Arc::new(Mutex::new(0))
-}
-
-pub fn forth_with_counter(counter: EmissionCounter) -> Forth {
-    Forth::new_with_counter(new_vars(), new_dict(), seeded_rng(42), counter)
-}
-
 pub fn run(script: &str) -> Forth {
     let f = forth();
     f.evaluate(script, &default_ctx()).unwrap();
@@ -139,13 +131,3 @@ pub fn expect_outputs(script: &str, count: usize) -> Vec<String> {
     outputs
 }
 
-#[allow(dead_code)]
-pub fn expect_output_contains(script: &str, substr: &str) {
-    let outputs = expect_outputs(script, 1);
-    assert!(
-        outputs[0].contains(substr),
-        "output '{}' does not contain '{}'",
-        outputs[0],
-        substr
-    );
-}

tests/forth/sound.rs

@@ -46,14 +46,15 @@ fn multiple_emits() {
 
 #[test]
 fn envelope_params() {
+    // Values are tempo-scaled: 0.01 * step_duration(0.125) = 0.00125, etc.
     let outputs = expect_outputs(
         r#""synth" s 0.01 attack 0.1 decay 0.7 sustain 0.3 release ."#,
         1,
     );
-    assert!(outputs[0].contains("attack/0.01"));
-    assert!(outputs[0].contains("decay/0.1"));
+    assert!(outputs[0].contains("attack/0.00125"));
+    assert!(outputs[0].contains("decay/0.0125"));
     assert!(outputs[0].contains("sustain/0.7"));
-    assert!(outputs[0].contains("release/0.3"));
+    assert!(outputs[0].contains("release/0.0375"));
 }
 
 #[test]
@@ -66,17 +67,17 @@ fn filter_params() {
 #[test]
 fn adsr_sets_all_envelope_params() {
     let outputs = expect_outputs(r#""synth" s 0.01 0.1 0.5 0.3 adsr ."#, 1);
-    assert!(outputs[0].contains("attack/0.01"));
-    assert!(outputs[0].contains("decay/0.1"));
+    assert!(outputs[0].contains("attack/0.00125"));
+    assert!(outputs[0].contains("decay/0.0125"));
     assert!(outputs[0].contains("sustain/0.5"));
-    assert!(outputs[0].contains("release/0.3"));
+    assert!(outputs[0].contains("release/0.0375"));
 }
 
 #[test]
 fn ad_sets_attack_decay_sustain_zero() {
     let outputs = expect_outputs(r#""synth" s 0.01 0.1 ad ."#, 1);
-    assert!(outputs[0].contains("attack/0.01"));
-    assert!(outputs[0].contains("decay/0.1"));
+    assert!(outputs[0].contains("attack/0.00125"));
+    assert!(outputs[0].contains("decay/0.0125"));
     assert!(outputs[0].contains("sustain/0"));
 }
 

tests/forth/temporal.rs

@@ -1,6 +1,4 @@
 use super::harness::*;
-#[allow(unused_imports)]
-use super::harness::{forth_with_counter, new_emission_counter};
 use std::collections::HashMap;
 
 fn parse_params(output: &str) -> HashMap<String, f64> {
@@ -245,51 +243,6 @@ fn dot_with_silence() {
     assert!(approx_eq(deltas[1], 2.0 * step));
 }
 
-#[test]
-fn internal_alternation_basic() {
-    let outputs = expect_outputs(r#"| "kick" "snare" | s . . . ."#, 4);
-    let sounds = get_sounds(&outputs);
-    assert_eq!(sounds, vec!["kick", "snare", "kick", "snare"]);
-}
-
-#[test]
-fn internal_alternation_three_sounds() {
-    let outputs = expect_outputs(r#"| "kick" "snare" "hat" | s . . . . . ."#, 6);
-    let sounds = get_sounds(&outputs);
-    assert_eq!(sounds, vec!["kick", "snare", "hat", "kick", "snare", "hat"]);
-}
-
-#[test]
-fn internal_alternation_single_item() {
-    let outputs = expect_outputs(r#"| "kick" | s . . . ."#, 4);
-    let sounds = get_sounds(&outputs);
-    assert_eq!(sounds, vec!["kick", "kick", "kick", "kick"]);
-}
-
-#[test]
-fn internal_alternation_with_params() {
-    let outputs = expect_outputs(r#"| 0.5 0.9 | gain "kick" s . ."#, 2);
-    fn parse_gain(output: &str) -> f64 {
-        let parts: Vec<&str> = output.trim_start_matches('/').split('/').collect();
-        for i in 0..parts.len() - 1 {
-            if parts[i] == "gain" {
-                return parts[i + 1].parse().unwrap_or(0.0);
-            }
-        }
-        0.0
-    }
-    let gains: Vec<f64> = outputs.iter().map(|o| parse_gain(o)).collect();
-    assert!(approx_eq(gains[0], 0.5), "first gain should be 0.5, got {}", gains[0]);
-    assert!(approx_eq(gains[1], 0.9), "second gain should be 0.9, got {}", gains[1]);
-}
-
-#[test]
-fn internal_alternation_empty_error() {
-    let f = forth();
-    let result = f.evaluate(r#"| | . ."#, &default_ctx());
-    assert!(result.is_err(), "empty internal cycle should error");
-}
-
 #[test]
 fn div_basic_subdivision() {
     let outputs = expect_outputs(r#"div "kick" s . "hat" s . ~"#, 2);
@@ -355,40 +308,6 @@ fn unmatched_scope_terminator_error() {
     assert!(result.is_err(), "unmatched ~ should error");
 }
 
-#[test]
-fn alternator_with_scale() {
-    let outputs = expect_outputs(r#""sine" s | 0 1 2 3 | mixolydian note . . . ."#, 4);
-    fn parse_note(output: &str) -> i64 {
-        let parts: Vec<&str> = output.trim_start_matches('/').split('/').collect();
-        for i in 0..parts.len() - 1 {
-            if parts[i] == "note" {
-                return parts[i + 1].parse().unwrap_or(0);
-            }
-        }
-        0
-    }
-    let notes: Vec<i64> = outputs.iter().map(|o| parse_note(o)).collect();
-    // mixolydian from C4: 0->60, 1->62, 2->64, 3->65
-    assert_eq!(notes, vec![60, 62, 64, 65]);
-}
-
-#[test]
-fn alternator_with_arithmetic() {
-    let outputs = expect_outputs(r#""sine" s | 100 200 | 2 * freq . ."#, 2);
-    fn parse_freq(output: &str) -> f64 {
-        let parts: Vec<&str> = output.trim_start_matches('/').split('/').collect();
-        for i in 0..parts.len() - 1 {
-            if parts[i] == "freq" {
-                return parts[i + 1].parse().unwrap_or(0.0);
-            }
-        }
-        0.0
-    }
-    let freqs: Vec<f64> = outputs.iter().map(|o| parse_freq(o)).collect();
-    assert!(approx_eq(freqs[0], 200.0), "first freq: expected 200, got {}", freqs[0]);
-    assert!(approx_eq(freqs[1], 400.0), "second freq: expected 400, got {}", freqs[1]);
-}
-
 #[test]
 fn stack_superposes_sounds() {
     let outputs = expect_outputs(r#"stack "kick" s . "hat" s . ~"#, 2);
@@ -452,13 +371,6 @@ fn emit_n_basic() {
     assert_eq!(sounds, vec!["kick", "kick", "kick", "kick"]);
 }
 
-#[test]
-fn emit_n_with_alternator() {
-    let outputs = expect_outputs(r#"| "kick" "snare" | s 4 .!"#, 4);
-    let sounds = get_sounds(&outputs);
-    assert_eq!(sounds, vec!["kick", "snare", "kick", "snare"]);
-}
-
 #[test]
 fn emit_n_zero() {
     let outputs = expect_outputs(r#""kick" s 0 .!"#, 0);
@@ -472,62 +384,3 @@ fn emit_n_negative_error() {
     assert!(result.is_err());
 }
 
-#[test]
-fn persistent_counter_across_evaluations() {
-    let counter = new_emission_counter();
-    let ctx = default_ctx();
-
-    // First evaluation: kick, snare, kick, snare
-    let f1 = forth_with_counter(counter.clone());
-    let outputs1 = f1.evaluate(r#"| "kick" "snare" | s . ."#, &ctx).unwrap();
-    let sounds1 = get_sounds(&outputs1);
-    assert_eq!(sounds1, vec!["kick", "snare"]);
-
-    // Second evaluation: continues from where we left off
-    let f2 = forth_with_counter(counter.clone());
-    let outputs2 = f2.evaluate(r#"| "kick" "snare" | s . ."#, &ctx).unwrap();
-    let sounds2 = get_sounds(&outputs2);
-    assert_eq!(sounds2, vec!["kick", "snare"]);
-}
-
-#[test]
-fn persistent_counter_three_item_cycle() {
-    let counter = new_emission_counter();
-    let ctx = default_ctx();
-
-    // First eval: kick, snare
-    let f1 = forth_with_counter(counter.clone());
-    let outputs1 = f1.evaluate(r#"| "kick" "snare" "hat" | s . ."#, &ctx).unwrap();
-    let sounds1 = get_sounds(&outputs1);
-    assert_eq!(sounds1, vec!["kick", "snare"]);
-
-    // Second eval: continues from hat (index 2)
-    let f2 = forth_with_counter(counter.clone());
-    let outputs2 = f2.evaluate(r#"| "kick" "snare" "hat" | s . ."#, &ctx).unwrap();
-    let sounds2 = get_sounds(&outputs2);
-    assert_eq!(sounds2, vec!["hat", "kick"]);
-
-    // Third eval: snare, hat
-    let f3 = forth_with_counter(counter.clone());
-    let outputs3 = f3.evaluate(r#"| "kick" "snare" "hat" | s . ."#, &ctx).unwrap();
-    let sounds3 = get_sounds(&outputs3);
-    assert_eq!(sounds3, vec!["snare", "hat"]);
-}
-
-#[test]
-fn emit_n_with_persistent_counter() {
-    let counter = new_emission_counter();
-    let ctx = default_ctx();
-
-    // First eval: 3 emits from a 4-item cycle
-    let f1 = forth_with_counter(counter.clone());
-    let outputs1 = f1.evaluate(r#"| "a" "b" "c" "d" | s 3 .!"#, &ctx).unwrap();
-    let sounds1 = get_sounds(&outputs1);
-    assert_eq!(sounds1, vec!["a", "b", "c"]);
-
-    // Second eval: continues from d
-    let f2 = forth_with_counter(counter.clone());
-    let outputs2 = f2.evaluate(r#"| "a" "b" "c" "d" | s 3 .!"#, &ctx).unwrap();
-    let sounds2 = get_sounds(&outputs2);
-    assert_eq!(sounds2, vec!["d", "a", "b"]);
-}