Piano synth · glm-4.7-flash
Output generated Cost / run $0.0108 Runtime 197.6s
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 · 49 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 build the piano app. Check tone.min.js exists, then write index.html, then test in browser.
{"command":"ls -la /tmp/job-McKmQJ && node -e \"const s=require('fs').readFileSync('/tmp/job-McKmQJ/tone.min.js','utf8');console.log(s.slicetotal 356 drwx------ 3 node node 4096 Oct 9 08:00 . drwxrwxrwt 6 root root 4096 Oct 9 08:00 .. drwxr-xr-x 3 node node 4096 Oct 9 08:00 .home -rw-r--r-- 1 node node 349169 Oct 9 08:00 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 349169
/tmp/job-McKmQJ/index.html (8914 bytes)Successfully wrote to /tmp/job-McKmQJ/index.html
{"action":"reload"}{"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://127.0.0.1:33629/a3c88a0b-aeae-4505-8123-9e9051725f10' 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":"ONE-OCTAVE PIANO\nClick the button (or press any piano key) to enable audio.\nEnable Audio\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
The worker CSP error is from Tone.js internal (ToneAudioBuffer worker?) — it's non-blocking typically. AudioContext suspended warning is expected until user gesture. Click "Enable Audio", then play notes.
{"action":"click","x":600,"y":163}{"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://127.0.0.1:33629/a3c88a0b-aeae-4505-8123-9e9051725f10' 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":"ONE-OCTAVE PIANO\nClick the button (or press any piano key) to enable audio.\nEnable Audio\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
DOM still shows the button and status "Click the button..." — Tone.start() may have not resolved or thrown due to CSP worker error? The error was about creating a worker (Tone.js maybe uses worker for... actually Tone doesn't use workers; maybe it's from something else). But status unchanged and button still visible means initAudio's promise didn't resolve. Maybe Tone.start() needs the context resumed within gesture; but in a sandboxed iframe it should still work. Let me inspect console state via evaluate-like action — I don't have an evaluate tool. I can click and then inspect. Let me check status text via inspect after clicking again.
{"action":"inspect"}{"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://127.0.0.1:33629/a3c88a0b-aeae-4505-8123-9e9051725f10' 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":"ONE-OCTAVE PIANO\nClick the button (or press any piano key) to enable audio.\nEnable Audio\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
Status still "Click the button...". Tone.start() promise never resolved? Or maybe it did resolve but the DOM shown is stale? The DOM output shows button still present. Possibly Tone.start() threw synchronously, or the click didn't register on the button. Also there might be a CSS overlay issue — the button at (600,163)? The piano might be positioned overlapping. Let me check layout: h1 at top, status, button. Should be fine. Maybe the click missed. Also note: audioReady may be false because Tone.start() never resolves when context can't start — but in a real user gesture it should.
Alternative approach: don't gate on Tone.start() resolving — set audioReady immediately after calling Tone.start(), and create synth right away, calling context.resume(). Let me restructure initAudio:
function initAudio(){
if(audioReady) return;
var ctx = Tone.getContext();
ctx.resume().catch(function(){});
synth = new Tone.PolySynth(...).toDestination();
audioReady = true;
...
}
But if context isn't running, synth playback won't sound. To verify, I need the console to confirm no errors after activation. The worker CSP error might be blocking Tone from creating its OfflineContext worker... actually Tone.js v14 creates a worker? The "ToneAudioBuffer" doesn't. Hmm, the blob worker might come from the page itself? No, we don't create workers. Tone.js v14.8 does have a "ToneAudioWorklet"... The worker error may be from Tone's inline worker for... Possibly harmless.
Better: make initAudio resilient — mark ready immediately, and also let keydown/pointerdown call initAudio. Also add fallback: if Tone.start() doesn't resolve, still create synth and call Tone.getContext().resume() directly.
Let me rewrite initAudio:
function initAudio() {
if (audioReady) return;
try {
var ctx = Tone.getContext();
var p = ctx.resume();
if (p && p.catch) p.catch(function(){});
} catch(e){}
synth = new Tone.PolySynth(...).toDestination();
audioReady = true;
status.textContent = "Audio ready — play!";
startBtn.classList.add("hidden");
}
Also guard synth calls with try/catch in case context suspended (triggerAttack on suspended context doesn't throw, just silent).
Also maybe Tone.start() hangs because the promise never resolves in this environment. Using ctx.resume() might also hang. But making audioReady immediate ensures UI updates and handlers work; sound may still be silent in sandboxed iframe, but in final artifact it may work. Let me also click a key and screenshot to verify highlighting.The Tone.start() promise seems not to resolve in this sandboxed environment, leaving the UI stuck. Let me make activation more robust — resume the context directly and mark audio ready immediately:
{"path":"/tmp/job-McKmQJ/index.html","edits":[{"oldText":" function initAudio() {\n if (audioReady) return;\n if (typeof Tone === \"uSuccessfully replaced 1 block(s) in /tmp/job-McKmQJ/index.html.
{"action":"reload"}{"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://127.0.0.1:41041/cd914858-b180-4886-8dcc-51e074cacb95' 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":"ONE-OCTAVE PIANO\nClick the button (or press any piano key) to enable audio.\nEnable Audio\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
{"action":"click","x":600,"y":163}{"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://127.0.0.1:41041/cd914858-b180-4886-8dcc-51e074cacb95' 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":"ONE-OCTAVE PIANO\nClick the button (or press any piano key) to enable audio.\nEnable Audio\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
Status still unchanged — maybe my click is missing the button. Where exactly is the button? h1 ~ y24+, status below, button next. y163 might be off. Let me screenshot to see layout.
The click may be missing the button. Let me take a screenshot to check the layout:
{"action":"screenshot"}{"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://127.0.0.1:41041/cd914858-b180-4886-8dcc-51e074cacb95' 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":"ONE-OCTAVE PIANO\nClick the button (or press any piano key) to enable audio.\nEnable Audio\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
Screenshot image not shown to me ("model does not support images"). I can't see it. Let me instead find the button coordinates via inspect — the inspect output is text only. I can use bash to compute? No. Alternative: use browser click on element — but the tool only takes coordinates. Maybe I should make the button easier to hit or rely on keyboard gesture: any piano keydown also calls initAudio. Let's test keyboard: press "a" via browser key action, then inspect status.I can't view images. The keydown path also activates audio, so let me test by pressing a computer key:
{"action":"key","text":"a"}{"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://127.0.0.1:41041/cd914858-b180-4886-8dcc-51e074cacb95' 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","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio."],"dom":"ONE-OCTAVE PIANO\nAudio ready — play!\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
Audio activated via keyboard gesture: status now "Audio ready — play!" and button hidden. The context reports "suspended" in this automation environment (synthetic key event may not count as user gesture), but in the final artifact with a real click it will resume. No errors from Tone after activation. Now test key press + hold highlighting. Press "a" (down), screenshot/inspect to see held class, then keyup and check release.
Audio activated via the key gesture. Now let me verify note-on highlighting (press and hold "a" for C4):
{"action":"keydown","text":"a"}Validation failed for tool "browser": - action: must be equal to constant - action: must be equal to constant - action: must be equal to constant - action: must be equal to constant - action: must be equal to constant - action: must be equal to constant - action: must be equal to constant - action: must be equal to constant Received arguments: { "action": "keydown", "text": "a" }
{"action":"type","text":"a"}{"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://127.0.0.1:41041/cd914858-b180-4886-8dcc-51e074cacb95' 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","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio."],"dom":"ONE-OCTAVE PIANO\nAudio ready — play!\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
Type sends full keydown+keyup probably instantly, so held state not observable. To verify press-and-release highlighting, use pointer drag on a key: pointerdown then hold? "drag" action moves from x,y to toX,toY. Better: click on a key element and inspect DOM after? Click completes quickly (down+up) so held class appears then disappears. Alternative: verify via code inspection — logic is straightforward. But the task asks to check observable press-and-release highlighting. I could use "drag" from one key to another with a pause? The drag likely dispatches down, moves, up. If I drag from C4 to C4 (same coords), maybe there's a delay. Let me try drag from key C4 to slightly different position; during drag the pointer stays down and note stays held. But I can't inspect mid-drag. Another approach: add a tiny debug — no. Instead, I can rely on the code logic plus a quick DOM check: click on a key, then inspect immediately — race. Actually the browser tool's click might dispatch mousedown, then mouseup separately with inspect happening in between? Unlikely. Pragmatic approach: add a small temporary feature? No, keep it simple. I could verify highlighting via the pointer path differently: use "drag" action from C4 (which is leftmost white key) to another spot, then inspect — after drag, pointerup released, note off. Can't observe mid-state. Alternative: use motion action which captures motion frames — that could show frames during interaction? "motion" seems for animations. Hmm. Simplest robust test: temporarily make the release slower? No. I could verify held class by dispatching events via URL? Not possible. Let me try clicking directly on a white key and inspect right after — if click is instantaneous, held removed. But my noteOff on pointerup removes class. So state converges to off — which verifies release works. To verify held state observable, maybe I can check with the drag: drag action = pointer down at (x,y), move, up. If I drag with small delta and the frames captured... The screenshot after drag won't show held. Option: modify code so a keydown shows held and only keyup clears — that's already the design. The issue is just observing it. I could add a debug hook: window.__heldVoices exposed. Then... but I can't execute JS via tools. Console logs! I can add console.log statements in noteOn/noteOff, then check console after clicking a key. That verifies note-start and note-release matching. Let me add logs temporarily? Actually keeping small logs isn't harmful but let me add them temporarily, verify, then remove.
`type` sends full press+release instantly, so held state won't be observable that way. Let me add temporary console logging to verify note-on/off pairing, then test with a pointer click on a key:
{"edits":[{"newText":" heldVoices[note] = true;\n el.classList.add(\"held\");\n console.log(\"noteOn\", note, Object.keys(heldVoiceSuccessfully replaced 2 block(s) in /tmp/job-McKmQJ/index.html.
{"action":"reload"}{"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://127.0.0.1:40307/7a9e0218-94c2-4b0d-9d31-4b972fd4a060' 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":"ONE-OCTAVE PIANO\nClick the button (or press any piano key) to enable audio.\nEnable Audio\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
{"action":"type","text":"awsedftgyhujk"}{"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://127.0.0.1:40307/7a9e0218-94c2-4b0d-9d31-4b972fd4a060' 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":"ONE-OCTAVE PIANO\nClick the button (or press any piano key) to enable audio.\nEnable Audio\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
Hmm — no noteOn/noteOff logs appeared, and status still shows "Click the button...". The `type` action maybe didn't trigger our keydown listener, or keys were typed before page ready, or the type action focuses something. Also Tone logs disappeared? Actually no new Tone warnings — so initAudio wasn't called. Earlier "key" action worked (a triggered initAudio). So `type` may not dispatch keydown to document? Strange. Let me try key action again with several keys one at a time.
{"action":"key","text":"s"}{"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://127.0.0.1:40307/7a9e0218-94c2-4b0d-9d31-4b972fd4a060' 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","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","log: noteOn D4 1","log: noteOff D4 0"],"dom":"ONE-OCTAVE PIANO\nAudio ready — play!\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
Keyboard works: noteOn D4 / noteOff D4, voices count 1→0, audio activated, no Tone errors after activation (only "suspended" warning because this automation context can't grant gesture — fine). Now test pointer input: click on a white key. Piano center around y≈470? Let me compute: body padding 24, h1 ~1.4rem (~30px) + margin 6, status ~20px + 18 margin, button ~40 + 18, piano top ~24+30+6+20+18+40+18 ≈ 156 → piano from ~156 to 156+220=376, keys width 52, 7 whites = 364 wide centered → starts at x≈(1200-380)/2+6 ≈ 416. C4 key spans x≈417–469. Click (440, 260).
Keyboard path verified. Now test pointer input on a white key (C4) and a black key:
{"action":"click","x":440,"y":260}{"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://127.0.0.1:40307/7a9e0218-94c2-4b0d-9d31-4b972fd4a060' 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","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","log: noteOn D4 1","log: noteOff D4 0"],"dom":"ONE-OCTAVE PIANO\nAudio ready — play!\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
No new noteOn — click at (440,260) hit... nothing? Or it hit a key but event target wasn't .key. Wait, no log at all. Maybe pointerdown target is the `.kbd` span or `<br>` — closest(".key") handles that. Hmm, maybe the click coordinates were off (piano not where I estimated). The status said "Click the button..." earlier at y=163 didn't work either, suggesting the layout is different than I estimate (maybe button lower/higher). But keyboard activation worked.
Let me estimate more carefully. Actually the earlier key click at (440,260) produced nothing — but the D4 click DID happen? No wait, the D4 logs came from the "key" action, previous call. The click call shows console starting fresh? No, console accumulates. The click call shows same logs as before plus nothing new. So click missed.
Let me figure the actual geometry. I could add an outline or use inspect... Inspect only returns text DOM. Hmm. The click on button at (600,163) failed too — so things are shifted down. Maybe the browser viewport isn't 1200x800 as documented, or body uses flex centering with justify-content: center — content is vertically centered! body has min-height 100vh and justify-content center. So content block centered vertically. Total content height: h1(≈30+6) + status(≈20+18) + button(≈40+18) + piano(220+? ) + map(...) ≈ maybe 480px → starts at y≈(800-480)/2 ≈ 160... Button would then be at ~y 214-254. Piano ≈ 272–492.
So clicking (440,260) — that's within piano x range? Piano centered: map box width max 720; piano is flex item, width determined by content = 364+12 ≈ 376 wide, centered at x 412–788. (440,260) might be just above piano top (272) or on it. It produced nothing though — maybe hit the padding area of #piano (6px padding) where target is piano div, closest('.key') fails.
Let me try (440, 350) for C4 white key, and black key C#4 is at left offset 6+1*52-16+1 = 43px from piano left → piano left ≈ 412+6? Wait black key positioned relative to #piano (position: relative). #piano left edge ≈ (1200-376)/2 = 412. C#4 spans x≈412+43=455 to 487, y≈ piano top+6 to +134. If piano top ≈272, C#4 y≈278–406.
Try click (470, 350) → should be C#4 black key. And (440,350) → C4.{"action":"click","x":440,"y":350}{"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://127.0.0.1:40307/7a9e0218-94c2-4b0d-9d31-4b972fd4a060' 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","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","log: noteOn D4 1","log: noteOff D4 0","log: noteOn C#4 1","log: noteOff C#4 0"],"dom":"ONE-OCTAVE PIANO\nAudio ready — play!\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
Click hit C#4 (black key) — pointerdown triggered noteOn C#4, pointerup triggered noteOff C#4. Black key placement and click handling verified. Now test white key C4 and a drag-release-outside (release outside key → note off). Drag from C4 to somewhere outside the piano: pointer down at (440, 380) then to (440, 100) — release outside. Expect noteOn C4, noteOff C4.
Black key works. Now test white key + releasing the pointer outside the key (drag off the piano):
{"action":"drag","x":440,"y":380,"toX":440,"toY":60}{"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://127.0.0.1:40307/7a9e0218-94c2-4b0d-9d31-4b972fd4a060' 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","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","log: noteOn D4 1","log: noteOff D4 0","log: noteOn C#4 1","log: noteOff C#4 0","log: noteOn C#4 1","log: noteOff C#4 0"],"dom":"ONE-OCTAVE PIANO\nAudio ready — play!\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
It registered C#4 again, not C4 — so (440,380) is still on the black key? That means C#4 spans that area... Let me recompute. Earlier click (440,350) hit C#4 too. So C#4's x range includes 440 → piano left edge is further left than I guessed, or the piano is narrower. Content might be centered horizontally with different width. Piano width = 7 whites × 52 - 1 + 12 padding = 375. If centered, left = 412.5. Black C#4 left offset = 6 + 52*1 - 16 + 1 = 43 → absolute 455.5–487.5. But clicks at x=440 hit C#4, so piano left ≈ 440-43 = 397? Then piano width 375 → spans 397–772, centered would be at 412.5. Close: if left is 400, C#4 spans 443–475. x=440 would miss by 3px... but margin-right -1 and borders may shift things slightly. Anyway. Instead of guessing coordinates, drag starting further left: x=420. If piano left ≈ 397-400, white C4 spans ~403–455 minus overlap of black key (black is z-index 2, covering 443–475 on upper part). At y=380 (below black key bottom which is top+6+128 = piano top+134; if piano top ≈ 252, black bottom ≈ 386) — at y=380 still in black zone. Use y=450 to be safely in white key area below black keys.
{"action":"drag","x":420,"y":460,"toX":420,"toY":60}{"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://127.0.0.1:40307/7a9e0218-94c2-4b0d-9d31-4b972fd4a060' 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","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","log: noteOn D4 1","log: noteOff D4 0","log: noteOn C#4 1","log: noteOff C#4 0","log: noteOn C#4 1","log: noteOff C#4 0","log: noteOn C4 1","log: noteOff C4 0"],"dom":"ONE-OCTAVE PIANO\nAudio ready — play!\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
noteOn C4 / noteOff C4 — releasing outside the key (pointer moved off the piano) still released the note. Now verify multi-note simultaneity + auto-repeat prevention. Key auto-repeat: my keydown ignores ev.repeat — can't easily simulate. Polyphony: press multiple keys via key action one at a time? Each key action sends down+up instantly, so only one held at a time. Can't hold via tools. But the logic (heldVoices map per note) clearly supports multiple; PolySynth maxPolyphony 8. I'll verify via code inspection (already done). Now test window blur releasing held notes — can't easily hold. Fine, code-inspected. One more check: console after audio activation — no errors from Tone (only the "suspended" warning, specific to this automation harness where synthetic events may not be a trusted gesture; in a real browser, pointerdown/keydown count as gestures and resume() will succeed). Now remove debug logs and finalize. Also reconsider: with the black key positioning — fine. Also ensure pointerdown noteOff when pointer released outside works even without capture — yes, window-level pointerup listener. One issue: on touch devices, pointerdown on piano then moving finger — pointerup on window fires. Good. Also should call el.releasePointerCapture? Implicit capture for touch would retarget pointerup to the element, but window listener still receives it via bubbling (pointerup bubbles from the captured element to window). Good. Remove logs.
All pointer behaviors verified. Now let me remove the debug logs and do a final check:
{"command":"cd /tmp/job-McKmQJ && sed -i '/console\\.log(\"noteOn\"/d; /console\\.log(\"noteOff\"/d' index.html && grep -n \"console.log\" i(no output) Command exited with code 1
{"action":"reload"}{"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://127.0.0.1:40507/ab3e06c4-27c8-40a4-a528-5f97d817841c' 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":"ONE-OCTAVE PIANO\nClick the button (or press any piano key) to enable audio.\nEnable Audio\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
{"action":"key","text":"g"}{"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://127.0.0.1:40507/ab3e06c4-27c8-40a4-a528-5f97d817841c' 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","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio.","warning: The AudioContext is \"suspended\". Invoke Tone.start() from a user action to start the audio."],"dom":"ONE-OCTAVE PIANO\nAudio ready — play!\nA\n\nC4\nW\n\nC#4\nS\n\nD4\nE\n\nD#4\nD\n\nE4\nF\n\nF4\nT\n\nF#4\nG\n\nG4\nY\n\nG#4\nH\n\nA4\nU\n\nA#4\nJ\n\nB4\nK\n\nC5\nComputer key 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\nHold several keys for chords · releasing a key or the mouse starts the envelope release","images":"model does not support images"}
thinking
Clean console after activation (no Tone errors; the "suspended" warning is the harness's synthetic-gesture limitation). Everything is done. Final report.
Done. `index.html` is complete in `/tmp/job-McKmQJ`. **What was built** - One chromatic octave C4–C5: 7 white keys + 5 correctly positioned black keys, each labeled with note name and its computer-key cap. - `Tone.PolySynth(Tone.Synth)` with triangle oscillator and ADSR envelope (attack 0.01s, decay 0.25s, sustain 0.4, release 0.6s), max polyphony 8. - Input: pointerdown on screen keys + keydown on `A W S E D F T G Y H U J K`; `ev.repeat` guard prevents auto-repeat duplicates; per-note `heldVoices` map makes release idempotent. - Safety releases: window-level `pointerup`/`pointercancel` (fires even when released outside a key), `window.blur`, and `visibilitychange` → all held voices trigger `triggerRelease`. - Audio activates on first user gesture (Enable Audio button, any piano keydown, or pointerdown) via `Tone.getContext().resume()`; full key mapping legend displayed below the piano. **Verified in browser** - Note/key labeling rendered for all 13 keys (A C4 · W C#4 · … · K C5) and mapping legend. - Keyboard play: pressing `S` logged note start/release pairing (D4 on → D4 off), and gesture keydown switched status to "Audio ready — play!" and hid the button. - Pointer play: clicked black key C#4 (on→off), and drag-press on white C4 with pointer released outside the piano still produced C4 on→off — no stuck notes. - Console after audio activation: no Tone.js errors (only an expected "suspended" warning because this automation harness's synthetic events aren't trusted gestures; in a real browser the gesture resumes the context). - Inspected handlers: `noteOn`/`noteOff` are symmetric via the `heldVoices` map, and blur/visibility handlers call `allNotesOff`. **Unverified** - Actual audible sound (harness blocks the AudioContext from running; logic paths all exercised). - Held-key highlight styling observed live (transient state; CSS `.held` rules are simple and the class toggling was confirmed through the event pairing), multi-key simultaneous chords, and auto-repeat suppression (couldn't hold keys in automation; logic guards are in place).