Arpeggiator pad · qwen3.7-plus
Using the pre-provided tone.min.js (global Tone), build a clickable pentatonic pad grid that triggers a synth voice with reverb, plus a play/stop button that runs an arpeggiator sequence at an adjustable tempo. All sound synthesized, no audio files.
transcript · 12 messages
Using the pre-provided tone.min.js (global Tone), build a clickable pentatonic pad grid that triggers a synth voice with reverb, plus a play/stop button that runs an arpeggiator sequence at an adjustable tempo. All sound synthesized, no audio files.
thinking
The user wants a single-page web app that: 1. Uses tone.min.js (already in the directory) for audio synthesis 2. Has a clickable pentatonic pad grid 3. Each pad triggers a synth voice with reverb 4. Has a play/stop button for an arpeggiator sequence 5. Adjustable tempo 6. All sound synthesized, no audio files 7. Everything in one index.html file Let me first check what's in tone.min.js to understand the library version available.
{"command":"ls -la /workspace/tone.min.js && head -5 /workspace/tone.min.js"}//# sourceMappingURL=Tone.js.map [Showing lines 4-4 of 4 (50.0KB limit). Full output: /tmp/pi-bash-d04f49299c138be9.log]
thinking
Let me check the Tone.js version more carefully.
{"command":"grep -o 'version[\"\\x27: ]*[^\"]*' /workspace/tone.min.js | head -5"}version:()=>i});var t={};s.r(t),s.d(t,{assert:()=>Bn,assertContextRunning:()=>Gn,assertRange:()=>Un,assertUsedScheduleTime:()=>Yn,enterScheduledCallback:()=>Xn,log:()=>Jn,setLogger:()=>Hn,warn:()=>Kn});var e={};s.r(e);const i= version=i;const _i=1e-6;function mi(t,e){return t>e+_i}function gi(t,e){return mi(t,e)||yi(t,e)}function vi(t,e){return t+_i<e}function yi(t,e){return Math.abs(t-e)<_i}function xi(t,e,s){return Math.max(Math.min(t,s),e)}class wi extends fi{constructor(){super(),this.name=
thinking
Let me check the actual version number:
{"command":"grep -o 'i=\"[0-9]*\\.[0-9]*\\.[0-9]*\"' /workspace/tone.min.js | head -1"}i="14.8.49"
thinking
Good, Tone.js version 14.8.49. This is the modern Tone.js with the standard API. I can use Tone.PolySynth, Tone.Reverb, Tone.Sequence, Tone.MembraneSynth or Tone.Synth for the pads, and Tone.Transport for the arpeggiator. Let me design the app: 1. **Pentatonic Pad Grid**: A grid of pads (maybe 3 octaves worth = 15 notes, arranged in a 5x3 or 3x5 grid). Pentatonic scale = 5 notes per octave, so 3 octaves = 15 pads. I'll use the minor pentatonic scale. 2. **Synth Voice**: Use Tone.PolySynth with a Synth or FMSynth, connected to a Reverb. 3. **Arpeggiator**: Use Tone.Sequence to cycle through pentatonic notes at an adjustable tempo. 4. **Controls**: Play/Stop button, tempo slider. Let me make it visually appealing with a dark theme and colorful pads.
Now I'll build the pentatonic pad grid app with synthesizer, reverb, and arpeggiator.
/workspace/index.html (17461 bytes)Successfully wrote 17461 bytes to /workspace/index.html
thinking
Let me verify the file was written correctly and is present.
{"command":"ls -la /workspace/index.html && echo \"---\" && head -3 /workspace/index.html"}-rw-r--r-- 1 node node 18825 Jul 22 17:01 /workspace/index.html --- <!DOCTYPE html> <html lang="en"> <head>
thinking
Everything looks good. The file is written and present. Let me provide a summary of what was built.
Done! Here's what **`/workspace/index.html`** includes: ### Features | Feature | Details | |---|---| | **Pad Grid** | 15 pads (3 octaves × 5 pentatonic degrees) with color-coded gradients per scale degree | | **Synth Engine** | 4 selectable voices: Poly, FM, AM, and Fat Saw — all through Tone.js PolySynth / FMSynth / AMSynth | | **Effects Chain** | AutoFilter → FeedbackDelay → Reverb → Output (fully synthesized) | | **Arpeggiator** | Runs a 15-note sequence across all pads with up/down/up-down/random patterns, visualized with a highlight that follows the current step | | **Tempo Control** | Slider from 40–240 BPM with smooth ramping | | **Reverb Control** | Adjustable wet/dry mix 0–100% | | **Octave Select** | Shift the base octave (C3/C4/C5) — grid and arp update instantly | | **Keyboard Keys** | `1-5`, `Q-T`, `6-0` trigger pads; `Space` toggles arp | | **Waveform Visualiser** | Gradient-colored real-time waveform canvas below the pads | Everything runs fully offline — all sound is synthesized by Tone.js, no audio files needed.
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
EVALUATION
Pentatonic pad grid with waveform display; keyboard input triggers pad highlights and play/stop toggles arp state, visuals look polished.
Vision grade · anthropic/claude-sonnet-5
MEASUREMENTS
Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.