diff --git a/package.json b/package.json
index 8f64528..7e804dc 100644
--- a/package.json
+++ b/package.json
@@ -10,9 +10,9 @@
   },
   "devDependencies": {
     "@tauri-apps/cli": "^1.4.0",
+    "@types/audioworklet": "^0.0.49",
     "typescript": "^5.0.2",
-    "vite": "^4.4.5",
-    "@types/audioworklet": "^0.0.49"
+    "vite": "^4.4.5"
   },
   "dependencies": {
     "@codemirror/lang-javascript": "^6.1.9",
@@ -20,6 +20,9 @@
     "@codemirror/theme-one-dark": "^6.1.2",
     "@replit/codemirror-vim": "^6.0.14",
     "@strudel.cycles/webaudio": "^0.8.2",
+    "acorn": "^8.10.0",
+    "acorn-walk": "^8.2.0",
+    "astring": "^1.8.6",
     "autoprefixer": "^10.4.14",
     "codemirror": "^6.0.1",
     "postcss": "^8.4.27",
diff --git a/src/API.ts b/src/API.ts
index e41b4fa..1f4f049 100644
--- a/src/API.ts
+++ b/src/API.ts
@@ -4,6 +4,9 @@ import { tryEvaluate } from "./Evaluator";
 import { MidiConnection } from "./IO/MidiConnection";
 // @ts-ignore
 import { webaudioOutput, samples } from '@strudel.cycles/webaudio';
+import { MiniLanguage } from "./Walker";
+import * as astring from 'astring';
+
 
 const sound = (value: any) => ({
     value, context: {},
@@ -139,7 +142,6 @@ export class UserAPI {
         // would be 1.0, which is the current rate (very speedy).
     }
 
-
     script(...args: number[]): void {
         /**
          * Evaluates 1-n local script(s)
@@ -180,7 +182,6 @@ export class UserAPI {
     }
     cps = this.copyscript
 
-
     // =============================================================
     // MIDI related functions
     // =============================================================
@@ -208,7 +209,7 @@ export class UserAPI {
         }
     }
 
-    public note(note: number, channel: number, velocity: number, duration: number): void {
+    public note(note: number, channel: number = 0, velocity: number = 100, duration: number = 0.5): void {
         /**
          * Sends a MIDI note to the current MIDI output.
          * TODO: Fix note duration
@@ -313,15 +314,7 @@ export class UserAPI {
         // Return current iterator value
         return this.iterators[name].value;
     }
-    it = this.iterator
-
-    get _() {
-        return this.iterator('_');
-    }
-
-    get A() {
-        return this.iterator('A');
-    } 
+    $ = this.iterator
 
     // =============================================================
     // Drunk mechanism
@@ -466,7 +459,7 @@ export class UserAPI {
          * @param array - The array of values to pick from
          */
         return array[this.app.clock.time_position.pulse % array.length]
-     }
+    }
 
     // =============================================================
     // Randomness functions
@@ -953,4 +946,10 @@ export class UserAPI {
     sound = async (values: object) => {
         webaudioOutput(sound(values), 0.00) 
     }
+
+    ast(code: string) {
+        const ast = MiniLanguage.parse(code, { ecmaVersion: 2020 });
+        console.log(astring.generate(ast))
+        return 
+    }
 }
diff --git a/src/Walker.ts b/src/Walker.ts
new file mode 100644
index 0000000..3e88019
--- /dev/null
+++ b/src/Walker.ts
@@ -0,0 +1,66 @@
+import * as acorn from 'acorn';
+import * as walk from 'acorn-walk';
+import * as astring from 'astring';
+
+// Create a custom Acorn plugin
+function myPlugin(Parser: typeof acorn.Parser): any {
+  return class extends Parser {
+    parseLiteral(...args: Parameters<acorn.Parser['parseLiteral']>) {
+      const node = super.parseLiteral(...args);
+      
+      // Check if the literal is a string and if it's wrapped in single quotes
+      if (typeof node.value === 'string' && this.input.slice(node.start, node.end).startsWith("'")) {
+        const transformed = this.transformMyString(node.value);
+
+        // Replace the Literal node with an ArrayExpression node
+        return {
+          type: 'SpreadElement',
+          argument: {
+            type: 'ArrayExpression',
+            elements: transformed.map(value => ({
+              type: 'Literal',
+              value,
+              raw: value.toString()
+            }))
+          },
+          start: node.start,
+          end: node.end
+        };
+      }
+
+      return node;
+    }
+
+    transformMyString(string: string): number[] {
+      const matches = string.match(/\d+!*\d*/g);
+      const values: number[] = [];
+
+      matches?.forEach(match => {
+        const parts = match.split('!');
+        const number = parseInt(parts[0]);
+        const times = parts[1] ? parseInt(parts[1]) : 1;
+
+        for (let i = 0; i < times; i++) {
+          values.push(number);
+        }
+      });
+
+      return values;
+    }
+  };
+}
+
+export const MiniLanguage = acorn.Parser.extend(myPlugin);
+
+// Sample code
+// const code = `
+//   const a = '3!4 5'; // This should become const a = [...[3,3,3,3,5]];
+// `;
+
+// Parse the code
+// const ast = MiniLanguage.parse(code, { ecmaVersion: 2020 });
+
+// Convert the transformed AST back into source code
+// const newCode = astring.generate(ast);
+
+// console.log(newCode);
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index d30bf8e..aa64bd2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -451,6 +451,16 @@
   resolved "https://registry.npmjs.org/@types/audioworklet/-/audioworklet-0.0.49.tgz"
   integrity sha512-Njo9vdkdTPwBTplwWgIXQk7Xoo5xAErxOfNXoq5pYHcYOZ1Yyp4M23TfeavaLZ+qqQo3y9xIigfWckizkyCKSw==
 
+acorn-walk@^8.2.0:
+  version "8.2.0"
+  resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-8.2.0.tgz#741210f2e2426454508853a2f44d0ab83b7f69c1"
+  integrity sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==
+
+acorn@^8.10.0:
+  version "8.10.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.10.0.tgz#8be5b3907a67221a81ab23c7889c4c5526b62ec5"
+  integrity sha512-F0SAmZ8iUtS//m8DmCTA0jlh6TDKkHQyK6xc6V4KDTyZKA9dnvX9/3sRTVQrWm79glUAZbnmmNcdYwUIHWVybw==
+
 any-promise@^1.0.0:
   version "1.3.0"
   resolved "https://registry.npmjs.org/any-promise/-/any-promise-1.3.0.tgz"
@@ -469,6 +479,11 @@ arg@^5.0.2:
   resolved "https://registry.npmjs.org/arg/-/arg-5.0.2.tgz"
   integrity sha512-PYjyFOLKQ9y57JvQ6QLo8dAgNqswh8M1RMJYdQduT6xbWSgK36P/Z/v+p888pM69jMMfS8Xd8F6I1kQ/I9HUGg==
 
+astring@^1.8.6:
+  version "1.8.6"
+  resolved "https://registry.yarnpkg.com/astring/-/astring-1.8.6.tgz#2c9c157cf1739d67561c56ba896e6948f6b93731"
+  integrity sha512-ISvCdHdlTDlH5IpxQJIex7BWBywFWgjJSVdwst+/iQCoEYnyOaQ95+X1JGshuBjGp6nxKUy1jMgE3zPqN7fQdg==
+
 automation-events@^6.0.8:
   version "6.0.8"
   resolved "https://registry.npmjs.org/automation-events/-/automation-events-6.0.8.tgz"