Arpeggiator pad · claude-opus-4.8
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 · 10 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
I need to verify that tone.min.js is available before proceeding with the build.
{"command":"ls -la /workspace"}total 388 drwxrwxrwx 3 node node 96 Jul 8 02:58 . drwxr-xr-x 1 root root 4096 Jul 8 02:58 .. -rw-r--r-- 1 node node 349169 Jul 8 02:58 tone.min.js
thinking
Now I'm setting up the HTML file.
/workspace/index.html (7485 bytes)Successfully wrote 7485 bytes to /workspace/index.html
thinking
Fixing a typo in the CSS `.hint` rule.
{"path":"/workspace/index.html","edits":[{"oldText":" .hint { margin-top: 22px; color: #6b melodic; font-size: 12px; color:#6b7397; text-alSuccessfully replaced 1 block(s) in /workspace/index.html.
{"command":"cd /workspace && node -e \"const fs=require('fs');const h=fs.readFileSync('index.html','utf8');console.log('script tags:',(h.matscript tags: 2 has tone src: true bytes: 7465
Done. `index.html` is a self-contained single-page app in `/workspace`. **What it does:** - **Pentatonic pad grid** — a 5×4 grid (C major pentatonic across octaves 3–6, high notes on top). Clicking/tapping a pad triggers a `PolySynth` voice routed through a `Tone.Reverb`, with a light-up animation. - **Play/Stop arpeggiator** — a `Tone.Sequence` runs an up/down arp pattern on the Transport; matching pads flash in sync via `Tone.Draw`. - **Controls** — tempo slider (50–220 BPM), reverb wet mix (0–100%), and oscillator waveform selector (triangle/sine/saw/square). Everything is fully synthesized (no audio files), loads `tone.min.js` locally, and starts the AudioContext on first user interaction as browsers require.
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 play/tempo/reverb controls; clicking/dragging highlights pads, but visuals barely change beyond highlight state.
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.