Piano synth · kimi-k3
Output generated Cost / run $0.1465 Runtime 135.1s
Prompt for this run
Build a playable piano keyboard using the provided Tone.js library. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. Use the provided `tone.min.js` (global `Tone`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - Display one chromatic octave from C4 through C5, with correctly placed black and white keys and visible note labels. - Map computer keys A W S E D F T G Y H U J K in order to those 13 notes. Pressing a screen key or its computer key starts the note; releasing it starts the envelope's release phase. - Use a synthesized voice with an ADSR envelope and support at least three simultaneous notes. Highlight keys while held. Prevent keyboard auto-repeat from creating duplicate sustained voices. - Release held voices when the pointer is released outside a key or the window loses focus, so notes cannot remain stuck. - Activate audio through a user gesture and synthesize all sound without audio files. Display the computer-key mapping. Verify: Play a few notes using the available mouse and keyboard actions. Check note/key labeling, any observable press-and-release highlighting, and the console after audio activation. Briefly inspect the input handlers for matching note-start and note-release behavior.
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
METRICS
Transcript · 35 messages
Build a playable piano keyboard using the provided Tone.js library. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. Use the provided `tone.min.js` (global `Tone`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - Display one chromatic octave from C4 through C5, with correctly placed black and white keys and visible note labels. - Map computer keys A W S E D F T G Y H U J K in order to those 13 notes. Pressing a screen key or its computer key starts the note; releasing it starts the envelope's release phase. - Use a synthesized voice with an ADSR envelope and support at least three simultaneous notes. Highlight keys while held. Prevent keyboard auto-repeat from creating duplicate sustained voices. - Release held voices when the pointer is released outside a key or the window loses focus, so notes cannot remain stuck. - Activate audio through a user gesture and synthesize all sound without audio files. Display the computer-key mapping. Verify: Play a few notes using the available mouse and keyboard actions. Check note/key labeling, any observable press-and-release highlighting, and the console after audio activation. Briefly inspect the input handlers for matching note-start and note-release behavior.
thinking
Let me check the current directory and tone.min.js exists.
{"command":"ls -la /tmp/job-xQkW1l && head -c 200 /tmp/job-xQkW1l/tone.min.js"}total 356 drwx------ 3 node node 4096 Oct 14 08:03 . drwxrwxrwt 6 root root 4096 Oct 14 08:03 .. drwxr-xr-x 3 node node 4096 Oct 14 08:03 .home -rw-r--r-- 1 node node 349169 Oct 14 08:03 tone.min.js /*! For license information please see Tone.js.LICENSE.txt */ !function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"ob
thinking
Write index.html with piano. Keys: C4 C#4 D4 D#4 E4 F4 F#4 G4 G#4 A4 A#4 B4 C5 → A W S E D F T G Y H U J K. Use Tone.PolySynth(Tone.Synth) with ADSR envelope. Prevent auto-repeat via e.repeat. Release on pointerup outside keys (track pointer capture or document pointerup), window blur releases all. Design: white keys flex, black keys absolutely positioned. Labels show note name and computer key.
/tmp/job-xQkW1l/index.html (6706 bytes)Successfully wrote to /tmp/job-xQkW1l/index.html
{"action":"reload"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:38671/f9c7e165-b01e-4628-8697-b5225c5dbd89' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio"],"dom":"🎹 Tone.js Piano — C4 to C5\n🔇 Click here (or press any mapped key) to enable audio\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
thinking
Layout looks correct. Now test interactions: click status to enable audio, press a key, screenshot for highlight, release. The worker CSP error is from Tone trying to create a worker (probably Tone's lookahead uses a worker via setInterval fallback? Actually Tone uses a worker for clock). It gets blocked by CSP; Tone falls back, should still work. Let's test.
Layout renders correctly. Now let me test audio activation and key presses.
{"action":"click","x":600,"y":263}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:38671/f9c7e165-b01e-4628-8697-b5225c5dbd89' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio"],"dom":"🎹 Tone.js Piano — C4 to C5\n🔊 Audio enabled — play with mouse or keys A W S E D F T G Y H U J K\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
thinking
Audio enabled (status shows green). Now press and hold a key — use key action. Test press-and-hold highlighting: browser key action might be a press+release. Let me try key 'a' and screenshot during hold — can't hold easily. Use motion frames? Let me try key action with text "a" then screenshot quickly; release happens fast though. Maybe use drag on a key: drag from key to key holds pointer down. E.g., drag from C4 white key (x=300,y=500) to another point — pointer stays down during drag, showing highlight. Let's do drag on white key C4 to slightly right, then screenshot.
Audio enabled. Now test press-and-hold highlighting via a drag on the C4 key (keeps pointer down):
{"action":"drag","x":300,"y":520,"toX":310,"toY":525}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:38671/f9c7e165-b01e-4628-8697-b5225c5dbd89' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio"],"dom":"🎹 Tone.js Piano — C4 to C5\n🔊 Audio enabled — play with mouse or keys A W S E D F T G Y H U J K\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
thinking
The screenshot was taken after drag completed (pointer up), so no highlight visible. Let me use motion frames to capture during the drag, or check the DOM for the active class during hold. Alternatively inspect via evaluate? The browser tool has "inspect" and "motion". Let me try motion with a drag.
Screenshot was post-release. Let me capture motion frames during a drag to see the held highlight:
{"action":"motion","x":300,"y":520,"toX":305,"toY":522}Frame 1, +0ms
[Browser image supplied to model]
Frame 2, +545ms
[Browser image supplied to model]
Frame 3, +1076ms
[Browser image supplied to model]
Frame 4, +1614ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:38671/f9c7e165-b01e-4628-8697-b5225c5dbd89' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio"],"dom":"🎹 Tone.js Piano — C4 to C5\n🔊 Audio enabled — play with mouse or keys A W S E D F T G Y H U J K\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
thinking
No highlight visible in any frame — the drag may be a synthetic drag that dispatches drag events rather than pointerdown on the element? Or pointerdown fired and released before frames captured. Hard to verify visually. Let me verify programmatically by dispatching events via inspect? The browser tool "inspect" shows DOM/console. I can't execute arbitrary JS directly... Actually maybe "key" action supports holding? Let me try key action with "a" — screenshot immediately after may catch active class if release is delayed. Or I can verify via a quick test harness: temporarily... Better: verify logic by dispatching events in console — not available. Alternative: use key action then screenshot — keydown/keyup dispatched quickly, highlight likely gone. But noteOn/noteOff add/remove classes synchronously. Better approach: temporarily add a debug hook? Not needed; I can test the handlers logic with a headless check. But simplest visual verification: modify page temporarily? No — instead I can trust code inspection plus test key press: press "a" via key action and take screenshot; the tool might send keydown only... Let's try "key" action with text "a".
No visible highlight captured during the synthetic drag. Let me test the keyboard path — press "a":
{"action":"key","text":"a"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:38671/f9c7e165-b01e-4628-8697-b5225c5dbd89' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio"],"dom":"🎹 Tone.js Piano — C4 to C5\n🔊 Audio enabled — play with mouse or keys A W S E D F T G Y H U J K\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
thinking
Keydown/keyup happen too fast to catch highlight. To verify the highlight class toggles correctly, I could check the DOM right after a keydown without keyup — the tool's key action likely sends both. I could verify highlight via a quick temporary debug in the page itself: add a console log in noteOn/noteOff? That changes the artifact. Instead, I can add harmless console.log lines permanently? Better to keep artifact clean. Alternative: verify via DOM during hold by making a permanent, harmless change? Actually, let me just add console.log to noteOn/noteOff temporarily, test, then remove. Or use class check via inspect during drag — the drag frames showed nothing, suggesting pointer events during synthetic drag may not fire pointerdown. Hmm. Quick temp test: append a small script that logs active classes on keydown. Actually simpler: temporarily modify noteOn/noteOff to console.log, reload, press keys, check console, revert.
Key press/release is too fast to catch visually. I'll temporarily add console logging to verify note start/release behavior:
{"path":"/tmp/job-xQkW1l/index.html","edits":[{"oldText":" held[note] = true;\n n.el.classList.add('active');","newText":" heSuccessfully replaced 2 block(s) in /tmp/job-xQkW1l/index.html.
{"action":"reload"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:39157/c10d0580-1d4b-4fac-95ea-fc9cf403568b' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio"],"dom":"🎹 Tone.js Piano — C4 to C5\n🔇 Click here (or press any mapped key) to enable audio\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
thinking
Now test: click status (audio), then key presses a, s, w, and clicks on keys. Check console logs.
{"action":"click","x":600,"y":263}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:39157/c10d0580-1d4b-4fac-95ea-fc9cf403568b' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio"],"dom":"🎹 Tone.js Piano — C4 to C5\n🔊 Audio enabled — play with mouse or keys A W S E D F T G Y H U J K\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
{"action":"key","text":"a"}{"action":"key","text":"w"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:39157/c10d0580-1d4b-4fac-95ea-fc9cf403568b' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","log: noteOn C4 held: C4","log: noteOff C4 held: "],"dom":"🎹 Tone.js Piano — C4 to C5\n🔊 Audio enabled — play with mouse or keys A W S E D F T G Y H U J K\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:39157/c10d0580-1d4b-4fac-95ea-fc9cf403568b' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","log: noteOn C4 held: C4","log: noteOff C4 held: ","log: noteOn C#4 held: C#4","log: noteOff C#4 held: "],"dom":"🎹 Tone.js Piano — C4 to C5\n🔊 Audio enabled — play with mouse or keys A W S E D F T G Y H U J K\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
thinking
Keyboard path verified: noteOn C4 / noteOff C4, noteOn C#4 / noteOff C#4 with correct mapping. Now test mouse click on a black key (C#4 at ~350,380) and a white key (D4 at ~400,520). Then test pointer-release-outside via drag ending outside piano. Then remove debug logs.
Keyboard mapping verified (a→C4, w→C#4, matched on/off). Now test pointer clicks on screen keys:
{"action":"click","x":350,"y":380}{"action":"click","x":1000,"y":520}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:39157/c10d0580-1d4b-4fac-95ea-fc9cf403568b' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","log: noteOn C4 held: C4","log: noteOff C4 held: ","log: noteOn C#4 held: C#4","log: noteOff C#4 held: ","log: noteOn C#4 held: C#4","log: noteOff C#4 held: "],"dom":"🎹 Tone.js Piano — C4 to C5\n🔊 Audio enabled — play with mouse or keys A W S E D F T G Y H U J K\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:39157/c10d0580-1d4b-4fac-95ea-fc9cf403568b' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","log: noteOn C4 held: C4","log: noteOff C4 held: ","log: noteOn C#4 held: C#4","log: noteOff C#4 held: ","log: noteOn C#4 held: C#4","log: noteOff C#4 held: ","log: noteOn C5 held: C5","log: noteOff C5 held: "],"dom":"🎹 Tone.js Piano — C4 to C5\n🔊 Audio enabled — play with mouse or keys A W S E D F T G Y H U J K\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
thinking
Pointer clicks work: C#4 black key click → noteOn/noteOff C#4; C5 white key click → noteOn/noteOff C5. All matched pairs, no stuck voices ("held:" always empties).
Now test pointer release outside the key: drag from key to outside the piano — earlier drag didn't produce noteOn logs? Wait — earlier drag test was before adding logs. Let me drag from a key (500,520 = E4 area... actually white keys: C4 250-350, D4 350-450, E4 450-550...). Drag from (500,520) to (600,700) — outside piano vertically. Check logs.Clicks on black key (C#4) and white key (C5) verified with matched on/off. Now test pointer release outside a key — drag from a key to below the piano:
{"action":"drag","x":500,"y":520,"toX":600,"toY":750}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:39157/c10d0580-1d4b-4fac-95ea-fc9cf403568b' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","log: noteOn C4 held: C4","log: noteOff C4 held: ","log: noteOn C#4 held: C#4","log: noteOff C#4 held: ","log: noteOn C#4 held: C#4","log: noteOff C#4 held: ","log: noteOn C5 held: C5","log: noteOff C5 held: ","log: noteOn E4 held: E4","log: noteOff E4 held: "],"dom":"🎹 Tone.js Piano — C4 to C5\n🔊 Audio enabled — play with mouse or keys A W S E D F T G Y H U J K\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
thinking
Drag from E4 key to outside piano: noteOn E4 then noteOff E4 — release outside key works. All held lists empty at end — no stuck notes. Highlight class is added/removed with the same code path (verified via the logs matching classList.add/remove adjacent lines). Now remove the debug logs and finish.
Drag-to-outside release verified (noteOn E4 → noteOff E4). All interactions show matched on/off pairs with no stuck voices. Now removing the debug logging:
{"path":"/tmp/job-xQkW1l/index.html","edits":[{"oldText":" n.el.classList.add('active');\n console.log('noteOn', note, 'held:', ObSuccessfully replaced 2 block(s) in /tmp/job-xQkW1l/index.html.
{"action":"reload"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c * Tone.js v14.8.49 * background: #000; color: #fff","error: Creating a worker from 'blob:http://127.0.0.1:36477/2dec31b3-821e-465a-9403-66320827c265' violates the following Content Security Policy directive: \"worker-src 'none'\". The action has been blocked.","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio","warning: The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://developer.chrome.com/blog/autoplay/#web_audio"],"dom":"🎹 Tone.js Piano — C4 to C5\n🔇 Click here (or press any mapped key) to enable audio\nC4\nA\nC#4\nW\nD4\nS\nD#4\nE\nE4\nD\nF4\nF\nF#4\nT\nG4\nG\nG#4\nY\nA4\nH\nA#4\nU\nB4\nJ\nC5\nK\nKeyboard mapping: A=C4 W=C#4 S=D4 E=D#4 D=E4 F=F4 T=F#4 G=G4 Y=G#4 H=A4 U=A#4 J=B4 K=C5","images":"attached"}
thinking
Done. Final file is clean. The console error about worker CSP is from Tone.js internally trying to create a clock worker in the sandbox — Tone falls back to setInterval-based scheduling; audio still works (standard behavior, not from my code). Report.
Done. `index.html` is complete and verified. **What was built:** A single-file Tone.js piano showing C4–C5 (8 white, 5 black keys) with note names and computer-key badges on each key, plus a full mapping legend. `Tone.PolySynth(Tone.Synth)` (triangle8 oscillator, ADSR: 0.02/0.25/0.5/0.9, maxPolyphony 16) is created after a `Tone.start()` user gesture. Held keys get an amber highlight; `e.repeat` and a `held` map prevent duplicate voices; `pointerup`/`pointercancel` on `window`, plus `blur`/`visibilitychange`, release all voices so nothing sticks. **Verified in the browser:** - Rendering: all 13 keys with correct black-key placement and labels (C4…C5, A…K); mapping line displayed. - Audio activation via click → status flips to "Audio enabled" (no autoplay errors after gesture). - Keyboard input: `a`→C4, `w`→C#4 — each produced exactly one noteOn/noteOff pair. - Pointer input: clicks on a black key (C#4) and white key (C5) → matched on/off. - Drag from a key (E4) to outside the piano → voice released correctly (no stuck notes; held-set always emptied). - Handlers inspected: `noteOn` guards duplicates and calls `triggerAttack`; `noteOff` calls `triggerRelease`. **Unverified:** actual audible output (headless environment — no sound device), and the held-highlight visual couldn't be captured in a screenshot since synthetic presses release instantly, though the class toggle shares the verified code path. The console shows a CSP warning about Tone.js's internal clock worker being blocked in the sandbox — Tone falls back to timer-based scheduling and this doesn't affect functionality.