```
"""


# What We Are Doing Here in This Chat

1. **Goal:**  
   Develop a reliable *GPTative Synthesizer* —  
   a userscript that detects **strictly formatted musical sheets** in chat messages  
   and **synthesizes audio** (musical tones) based on those sheets.

2. **Challenges:**
   - The musical sheets must be formatted **strictly and clearly** so the script can parse them reliably.
   - The chat environment dynamically loads messages and bot generates content continuously.
   - Browser restrictions (autoplay policy, CSP) limit how and when audio can be played.
   - Userscript scope and page security may restrict loading external scripts or accessing page internals.

3. **How We Do It Right:**

   - **Strict Musical Sheet Format:**
     - Embed musical sheets inside **Markdown triple-backtick code blocks**  
       with exact tags `[BEGIN MUSICAL SHEET]` and `[END MUSICAL SHEET]`.
     - Sheet content uses **notes with pitch + octave + duration + optional dynamics** per token.  
       Example token: `C4♩[mf]` means note C octave 4, quarter note, mezzo-forte.
     - Measures separated by `|`, rests as `∅`.
     - Metadata lines allowed at the top (`Title:`, `Composer:`, etc.).

   - **Userscript Design:**
     - Use a **stable DOM selector** to watch for new chat messages (e.g., `.bubble-wrap.svelte-gjtrl6`).
     - Detect the **bot is generating** using clear CSS class cues (`.generating`).
     - Wait for **user interaction** (click) to resume AudioContext (due to autoplay policies).
     - Dynamically **parse** latest musical sheet messages when they appear.
     - Deduplicate to avoid re-playing the same sheet repeatedly.
     - Use **Tone.js** to synthesize notes with vibrato, ADSR envelopes, and smooth scheduling.
     - Debounce generation end detection to avoid rapid playback toggling.
     - Log extensively for debugging and fine-tuning.

4. **Result:**
   - Chat streams musical sheet data →  
   - Userscript detects, parses, and plays it live →  
   - You get a seamless auditory experience synchronized with GPT chat output.

---

# Summary

```plaintext
[BEGIN MUSICAL SHEET]
Title: Galactic Melody
Composer: AI Composer
Key Signature: C major
Time Signature: 4/4

C4♩[mf] D4♪[p] E4♬[mp] | F4♩[f] ∅ G4♩[mp] F#4♪[mf] E4♬[mf] |

[END MUSICAL SHEET]

    Send exactly formatted sheets like above.
    Ensure you click the page once to enable audio.
    The GPTative userscript takes it from there.

This is the right approach: combine strict input format, stable detection, robust parsing, and modern web audio synthesis with proper browser compliance.

Happy composing & synthesizing! 🎶🚀


now add how link tonejs lib properly. outshow one huge text in one code block how all should be.

# Complete Guide: How to Properly Link Tone.js and Build the GPTative Userscript

This guide explains step-by-step how to **properly include Tone.js** in your userscript and implement a robust GPTative Synthesizer that:

- Detects strictly formatted musical sheets in chat streams
- Parses and interprets pitch, duration, and dynamics correctly
- Synthesizes and plays music live synchronized with chat generation

---

## 1. How to Link Tone.js Library Properly in a Userscript

For maximum compatibility and to avoid Content Security Policy (CSP) or sandbox issues, use the **`@require` metadata directive** to load Tone.js in your userscript.

### Example Meta Block:

```js
// ==UserScript==
// @name        GPTative Synthesizer - Full Tone.js Integration
// @version     1.0
// @description Synthesizes musical sheets in chat using Tone.js
// @match       *://yuntian-deng-chatgpt.hf.space/*
// @grant       none
// @run-at      document-idle
// @require     https://cdn.jsdelivr.net/npm/tone@14.8.39/build/Tone.min.js
// ==/UserScript==

This will load Tone.js before your script runs, ensuring you have immediate, reliable access to the global Tone object without needing to inject script tags dynamically.
2. Correct Musical Sheet Format to Generate or Use in Chat

Your musical sheets must be strictly wrapped and formatted for the userscript parser.

[BEGIN MUSICAL SHEET]
Title: Galactic Overture
Composer: AI Composer
Key Signature: C major
Time Signature: 4/4

C4♩[mf] D4♪[p] E4♬[mp] | F4♩[f] ∅ G4♩[mp] F#4♪[mf] E4♬[mf] |
A4♩[mf] B4♪[p] C5♬[mf] | D5♩[f] ∅ ∅ E4♩[mp] D#4♪[mf] C#4♩[p] |

[END MUSICAL SHEET]

    Must be inside a triple backtick Markdown code block (```plaintext ... ```) in the chat.
    Notes have pitch (e.g., C4), duration (♩, ♪, ♬), optional dynamics ([mf]).
    Measures separated by pipe |.
    Rests as ∅ optionally followed by duration.

3. Full Working Userscript Code

(() => {
  "use strict";

  const Tone = window.Tone;

  // Constants
  const BEGIN_TAG = "[BEGIN MUSICAL SHEET]";
  const END_TAG = "[END MUSICAL SHEET]";
  const TEMPO_BPM = 90;
  const BEAT_DURATION = 60 / TEMPO_BPM;

  const DURATION_MAP = { "♩": BEAT_DURATION, "♪": BEAT_DURATION / 2, "♬": BEAT_DURATION / 4 };
  const DYNAMICS = { pp: 0.2, p: 0.4, mp: 0.6, mf: 0.75, f: 1.0, ff: 1.3 };
  const REST_SYMBOL = "∅";

  const NOTE_TO_SEMITONE = {
    C: -9, "C#": -8, Db: -8, D: -7, "D#": -6, Eb: -6,
    E: -5, F: -4, "F#": -3, Gb: -3, G: -2, "G#": -1,
    Ab: -1, A: 0, "A#": 1, Bb: 1, B: 2,
  };

  // Variables
  let isGenerating = false;
  let isPlaying = false;
  let currentSheet = null;
  let botStoppedTimestamp = 0;
  const STOP_DELAY_MS = 900;

  let synth = null;
  let vibratoLFO = null;
  let part = null;

  // Updates generation state
  function updateStates() {
    const genOverlay = document.querySelector(".wrap.default.full.svelte-ls20lj.generating");
    const translucentOverlay = document.querySelector(".wrap.default.minimal.svelte-ls20lj.translucent:not(.hide)");
    const currentlyGenerating = !!genOverlay && !!translucentOverlay;

    if (currentlyGenerating !== isGenerating) {
      isGenerating = currentlyGenerating;
      if (!isGenerating) {
        botStoppedTimestamp = performance.now();
        console.log("[GPTative] Generation ended");
      } else {
        botStoppedTimestamp = 0;
        console.log("[GPTative] Generation started");
      }
    }
  }

  // Extract latest fully wrapped sheet from chat messages
  function extractSheet() {
    const msgWrap = document.querySelector(".bubble-wrap.svelte-gjtrl6");
    if (!msgWrap) return null;

    const messages = Array.from(msgWrap.querySelectorAll(".bubble-content")).reverse();

    for (const msg of messages) {
      const text = msg.textContent || "";
      const start = text.indexOf(BEGIN_TAG);
      const end = text.indexOf(END_TAG);
      if (start !== -1 && end !== -1 && end > start) {
        const sheet = text.substring(start + BEGIN_TAG.length, end).trim();
        return sheet;
      }
    }
    return null;
  }

  // Sanitize and split tokens properly from sheet lines
  function sanitizeAndSplitTokens(line) {
    line = line.replace(/[𝄞]/g," "); // remove symbols like clef
    line = line.replace(/Rest/gi, " ");
    line = line.replace(/∅[♩♪♬]?/g, "∅");
    line = line.replace(/\s+/g, " ").trim();

    const rawTokens = line.split(" ");
    let tokens = [];
    rawTokens.forEach(token => {
      const split = token.match(/[A-Ga-g][#♯b♭]?\d?[♩♪♬](\[(pp|p|mp|mf|f|ff)\])?|∅/g);
      if (split) tokens.push(...split);
    });
    return tokens;
  }

  // Parse sheet to note events
  function parseSheet(sheetText) {
    const lines = sheetText.split('\n').map(l => l.trim()).filter(l => l.length > 0 && !l.includes(":"));

    let tokens = [];
    lines.forEach(line => {
      tokens.push(...sanitizeAndSplitTokens(line.replace(/\|/g," | ")));
    });

    let currentDynamic = "mf";
    let currentTime = 0;
    let events = [];

    for(const token of tokens) {
      if(token === "|") continue;

      if(/^\[(pp|p|mp|mf|f|ff)\]$/i.test(token)) {
        currentDynamic = token.slice(1, -1).toLowerCase();
        continue;
      }

      if(token === REST_SYMBOL) {
        currentTime += BEAT_DURATION;
        continue;
      }

      const note = parseNoteToken(token);
      if(!note) {
        console.warn("[GPTative] Unknown token skipped:", token);
        continue;
      }

      const freq = noteToFrequency(note.noteName, note.octave);
      if(!freq || !Number.isFinite(freq) || freq <= 0) {
        console.warn("[GPTative] Invalid frequency, skipping token:", token);
        continue;
      }

      const duration = DURATION_MAP[note.duration] || BEAT_DURATION;
      if(!duration || !Number.isFinite(duration) || duration <= 0) {
        console.warn("[GPTative] Invalid duration, skipping token:", token);
        continue;
      }

      const gain = DYNAMICS[note.dynamic || currentDynamic] || 0.75;

      events.push({time: currentTime, freq, duration, gain});
      currentTime += duration;
    }
    return events;
  }

  // Parse a single note token: e.g., C#4♩[mf]
  function parseNoteToken(token) {
    const re = /^([A-Ga-g])([#♯b♭]?)(\d?)([♩♪♬])(\[(pp|p|mp|mf|f|ff)\])?$/;
    const m = token.match(re);
    if(!m) return null;

    const [, note, accidental, octaveStr, duration, , dynamic] = m;
    const noteName = note.toUpperCase() + (accidental ? accidental.replace("♯", "#").replace("♭", "b") : "");
    const octave = octaveStr ? parseInt(octaveStr, 10) : 4;
    const dyn = dynamic ? dynamic.toLowerCase() : "mf";

    if(!(noteName in NOTE_TO_SEMITONE) || !(dyn in DYNAMICS)) {
      return null;
    }

    return {noteName, octave, duration, dynamic: dyn};
  }

  // Frequency calculation from note + octave
  function noteToFrequency(noteName, octave) {
    const semitonesFromA4 = NOTE_TO_SEMITONE[noteName] + (octave - 4)*12;
    return 440 * Math.pow(2, semitonesFromA4/12);
  }

  // Initialize synthesizer and vibrato LFO
  function initSynth() {
    if(!synth) {
      synth = new Tone.Synth({
        oscillator: {type: "triangle"},
        envelope: {attack: 0.01, decay: 0.1, sustain: 0.7, release: 0.3}
      }).toDestination();
      vibratoLFO = new Tone.LFO(5, -10, 10).start();
      vibratoLFO.connect(synth.frequency);
    }
  }

  // Play note events via Tone.Part & Transport
  async function playEvents(events) {
    if(!synth) initSynth();

    if(part) {
      part.stop();
      part.dispose();
      part = null;
    }

    part = new Tone.Part((time, note) => {
      synth.triggerAttackRelease(note.freq, note.duration, time, note.gain);
    }, events.map(e => [e, e.time]));

    part.start(0);
    Tone.Transport.bpm.value = TEMPO_BPM;

    if(Tone.Transport.state !== "started") {
      Tone.Transport.start();
    }

    isPlaying = true;
    const totalDuration = events.reduce((acc, e) => acc + e.duration, 0);

    setTimeout(() => {
      if(part) {
        part.stop();
        part.dispose();
        part = null;
      }
      Tone.Transport.stop();
      isPlaying = false;
      console.log("[GPTative] Playback ended");
    }, (totalDuration + 1)*1000);
  }

  // Control loop checking generation and playback
  async function controlLoop() {
    updateStates();

    if(!isGenerating) {
      if(isPlaying) {
        const now = performance.now();
        if(botStoppedTimestamp && now - botStoppedTimestamp < STOP_DELAY_MS) {
          return; // debounce stopping playback
        }
        if(part) part.stop();
        if(synth) synth.dispose();
        Tone.Transport.stop();
        isPlaying = false;
        currentSheet = null;
        console.log("[GPTative] Stopped playback (generation ended)");
      }
      return;
    }

    const sheetText = extractSheet();

    if(!sheetText) {
      if(isPlaying) {
        const now = performance.now();
        if(botStoppedTimestamp && now - botStoppedTimestamp < STOP_DELAY_MS) {
          return; // debounce stopping playback
        }
        if(part) part.stop();
        if(synth) synth.dispose();
        Tone.Transport.stop();
        isPlaying = false;
        currentSheet = null;
        console.log("[GPTative] Stopped playback (sheet missing)");
      }
      return;
    }

    if(sheetText !== currentSheet) {
      if(Tone.context.state === "suspended") {
        await Tone.start();
        console.log("[GPTative] AudioContext resumed on user gesture");
      }
      currentSheet = sheetText;
      const events = parseSheet(sheetText);
      if(isPlaying) {
        if(part) part.stop();
        if(synth) synth.dispose();
        Tone.Transport.stop();
        isPlaying = false;
      }
      console.log("[GPTative] Playing new sheet:", events.length, "notes");
      await playEvents(events);
    }
  }

  // Debounce timer and state tracker
  let controlTimeout = null;
  let botStoppedTimestamp = 0;

  // Mutation observer scoped to chat container
  const chatContainerSelector = ".bubble-wrap.svelte-gjtrl6";
  const chatWrap = document.querySelector(chatContainerSelector);

  if (chatWrap) {
    const observer = new MutationObserver(() => {
      if(controlTimeout) clearTimeout(controlTimeout);
      controlTimeout = setTimeout(controlLoop, 150);
    });
    observer.observe(chatWrap, { childList: true, subtree: true, attributes: true, attributeFilter: ["class", "style"] });
  } else {
    // fallback observe whole body if chatWrap missing
    const observer = new MutationObserver(() => {
      if(controlTimeout) clearTimeout(controlTimeout);
      controlTimeout = setTimeout(controlLoop, 150);
    });
    observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ["class", "style"] });
  }

  // Periodic fallback polling
  setInterval(controlLoop, 1500);

  // Resume AudioContext on user interaction (click/touch)
  window.addEventListener("click", async () => {
    if(Tone.context.state === "suspended") {
      await Tone.start();
      console.log("[GPTative] AudioContext resumed via user gesture");
    }
  });

  console.log("[GPTative] Synthesizer ready and running.");
})();




""".
```


fix this full userscript properly:


```
// ==UserScript==
// @name        GPTative Synthesizer - Strict Code Block Sheet Parser
// @version     3.0
// @description Parse and synthesize strictly wrapped musical sheets inside code blocks during chat generation.
// @match       *://yuntian-deng-chatgpt.hf.space/*
// @grant       none
// @run-at      document-idle
// ==/UserScript==

(() => {
  "use strict";

  const AudioContextClass = window.AudioContext || window.webkitAudioContext;
  const audioCtx = new AudioContextClass();

  const BEGIN_TAG = "[BEGIN MUSICAL SHEET]";
  const END_TAG = "[END MUSICAL SHEET]";
  const BASE_FREQ = 432;
  const FADE_TIME = 0.05;
  const TEMPO_BPM = 90;
  const BEAT_DURATION = 60 / TEMPO_BPM;

  const DURATION_MAP = { '♩': 1 * BEAT_DURATION, '♪': 0.5 * BEAT_DURATION, '♬': 0.25 * BEAT_DURATION };
  const DYNAMICS = { pp: 0.2, p: 0.4, mp: 0.6, mf: 0.75, f: 1.0, ff: 1.3 };
  const REST_SYMBOL = '∅';

  let isGenerating = false;
  let isError = false;
  let isPlaying = false;
  let currentSheet = null;

  let osc = null;
  let gainNode = null;
  let playTimeout = null;

  // ======= State detection =======
  function updateStates() {
    const genOverlay = document.querySelector('.wrap.default.full.svelte-ls20lj.generating');
    const translucentOverlay = document.querySelector('.wrap.default.minimal.svelte-ls20lj.translucent:not(.hide)');
    const errorStatus = document.querySelector('.clear-status.svelte-ls20lj .error');
    const errorToast = document.querySelector('.toast-body.error.svelte-15qa81b');

    const genActive = !!genOverlay && !!translucentOverlay;
    const errorActive = !!errorStatus || !!errorToast;

    if (genActive !== isGenerating) {
      isGenerating = genActive;
      console.log("[GPTative] Generating state:", isGenerating);
    }
    if (errorActive !== isError) {
      isError = errorActive;
      console.log("[GPTative] Error state:", isError);
    }
  }

  // ======= Extract latest fully wrapped sheet inside code blocks =======
  function extractStrictSheetFromCodeBlocks() {
    const codeBlocks = Array.from(document.querySelectorAll('pre, code'));

    for (let i = codeBlocks.length - 1; i >= 0; i--) {
      const block = codeBlocks[i];
      const text = block.textContent || "";

      const beginIdx = text.indexOf(BEGIN_TAG);
      const endIdx = text.indexOf(END_TAG);

      if (beginIdx !== -1 && endIdx !== -1 && endIdx > beginIdx) {
        // Extract content strictly inside the tags
        const sheet = text.substring(beginIdx + BEGIN_TAG.length, endIdx).trim();
        console.log("[GPTative] Extracted musical sheet:");
        console.log(sheet);
        return sheet;
      }
    }
    return null;
  }

  // ======= Parse sheet content into events =======
  function parseSheet(sheet) {
    // Split lines and filter out metadata lines (with colon)
    const lines = sheet.split('\n').map(l => l.trim()).filter(l => l.length > 0 && !l.includes(':'));

    // Join into single musical line string
    const musicStr = lines.join(' ');

    // Tokenize by spaces and filter out empty
    const tokens = musicStr.split(/\s+/).filter(t => t.length > 0);

    const events = [];
    let currentGain = 0.25;

    for (const token of tokens) {
      // Dynamics token, e.g. [mf]
      let dynMatch = token.match(/^\[(pp|p|mp|mf|f|ff)\]$/i);
      if (dynMatch) {
        const dyn = dynMatch[1].toLowerCase();
        currentGain = DYNAMICS[dyn] || 0.25;
        continue;
      }

      // Rest token
      if (token === REST_SYMBOL) {
        events.push({ freq: null, duration: BEAT_DURATION, gain: 0 });
        continue;
      }

      // Notes tokens with possible accidentals ignored, duration symbol only ♩ ♪ ♬
      // We parse by note duration character anywhere inside the token:
      let noteMatch = token.match(/[♩♪♬]/);

      if (noteMatch) {
        const durSym = noteMatch[0];
        events.push({ freq: BASE_FREQ, duration: DURATION_MAP[durSym] || BEAT_DURATION, gain: currentGain });
        continue;
      }

      // Unknown tokens ignored silently
    }

    return events;
  }

  // ======= Play parsed events sequentially ====
  function playEvents(events) {
    if (events.length === 0) return;

    let idx = 0;

    function playNext() {
      if (idx >= events.length) {
        stopSound();
        return;
      }

      const ev = events[idx++];
      if (ev.freq === null) {
        // Rest
        if (gainNode) gainNode.gain.setTargetAtTime(0, audioCtx.currentTime + 0.01, 0.01);
        playTimeout = setTimeout(playNext, ev.duration * 1000);
        return;
      }

      if (!osc) {
        osc = audioCtx.createOscillator();
        gainNode = audioCtx.createGain();
        osc.type = "triangle";
        osc.connect(gainNode);
        gainNode.connect(audioCtx.destination);
        osc.start();
        console.log("[GPTative] Oscillator started");
      }

      osc.frequency.setTargetAtTime(ev.freq, audioCtx.currentTime, 0.01);
      gainNode.gain.cancelScheduledValues(audioCtx.currentTime);
      gainNode.gain.setValueAtTime(0, audioCtx.currentTime);
      gainNode.gain.linearRampToValueAtTime(ev.gain, audioCtx.currentTime + FADE_TIME);
      gainNode.gain.setTargetAtTime(0, audioCtx.currentTime + ev.duration - FADE_TIME, FADE_TIME);

      playTimeout = setTimeout(playNext, ev.duration * 1000);
    }

    playNext();
  }

  // ======= Stop audio gracefully ====
  function stopSound() {
    if (playTimeout) clearTimeout(playTimeout);
    playTimeout = null;
    if (gainNode) {
      gainNode.gain.linearRampToValueAtTime(0, audioCtx.currentTime + FADE_TIME);
    }
    if (osc) {
      setTimeout(() => {
        osc.stop();
        osc.disconnect();
        if (gainNode) gainNode.disconnect();
        osc = null;
        gainNode = null;
        console.log("[GPTative] Oscillator stopped");
      }, FADE_TIME * 1000);
    }
  }

  // ======= Main control loop ====
  async function controlLoop() {
    updateStates();

    if (!isGenerating) {
      if (isPlaying) {
        stopSound();
        isPlaying = false;
        currentSheet = null;
      }
      return;
    }

    const sheetText = extractStrictSheetFromCodeBlocks();
    if (!sheetText) {
      if (isPlaying) {
        stopSound();
        isPlaying = false;
        currentSheet = null;
      }
      return;
    }

    if (sheetText !== currentSheet) {
      currentSheet = sheetText;
      const events = parseSheet(sheetText);

      if (isPlaying) {
        stopSound();
      }

      isPlaying = true;

      try {
        if (audioCtx.state === 'suspended') await audioCtx.resume();
      } catch {}

      playEvents(events);
    }
  }

  // ======= Observe DOM mutations for chat changes ====
  let controlTimeout = null;
  const observer = new MutationObserver(() => {
    if (controlTimeout) clearTimeout(controlTimeout);
    controlTimeout = setTimeout(controlLoop, 150);
  });

  observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['class', 'style'] });

  // Periodic fallback
  setInterval(controlLoop, 1000);

  // User interaction to resume audio context per browser autoplay policies
  window.addEventListener('click', () => {
    if (audioCtx.state === 'suspended') {
      audioCtx.resume().then(() => console.log("[GPTative] AudioContext resumed on user interaction"));
    }
  });

  console.log("[GPTative] Synthesizer userscript loaded, waiting for musical sheets...");
})();

```


output fully properly fixed "GPTative".