Arpeggiator pad · kimi-k2.7-code
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
We need build single-page web app in /workspace/index.html, self-contained, use tone.min.js local file, no external resources. Need clickable pentatonic pad grid triggering synth voice with reverb; play/stop runs arpeggiator sequence at adjustable tempo. Need inspect current dir. We'll create index.html. interactive grid, synth, reverb, arpeggiator with Tone.Transport. Must handle AudioContext start (click button to start). Ensure no CDNs. Include some styling. Suppose pentatonic scale C pentatonic minor: C3, Eb3, F3, G3, Bb3, C4, Eb4, F4, G4, Bb4, C5 etc. We'll make 5 rows x 8 columns? Pentatonic pad grid arranged e.g., rows are pitch steps, columns are root offsets? Actually pentatonic pad means each pad triggers a pentatonic note. Simpler: grid of e.g., 5 rows x 8 columns where each column corresponds to note in pentatonic scale across octaves, each row same scale offset? Could be vertical pitch. Let's make a 5x8 pad grid: each row represents one of five pentatonic degrees, each column different octave starting C2-C5. This creates pentatonic notes. With color schemes. Click triggers Tone Synth (maybe PolySynth) with reverb. Provide visual feedback on playing and arp. Also need controls: Play/Stop toggle, BPM slider. Pentatonic arpeggiator sequence that plays notes in order through grid or random. Could be an 8-step pattern across the selected column or across current scale. Simpler: arp plays one pad at a time across scale notes ascending and looping, maybe includes all 40 notes. Or arp triggers a pattern made from first row at current column? To keep clear, arp plays a sequence of 8 notes (one per column) of pentatonic scale C3..C5, step through. Then pads are independent. But better tie to grid: select which column is active for arp (e.g., all pads in that column or notes of that column). Maybe arp steps through each row of current selected column, or random pads. We can let user toggle pad arp? The prompt: "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." So pad grid triggers synth individually; arpeggiator runs sequence at adjustable tempo. A simple arpeggiator can iterate over the currently selected scale notes in ascending order. Use Tone.Sequence. Could highlight the current arp pad. Let's decide grid 5 rows x 8 columns. The pentatonic degrees = [0, 3, 5, 7, 10] semitones relative to base midi C. Each column adds 12 semitones. Base midi C2 = 36. Note = midi2note 36+col*12+degree, limited. That yields 8*5 notes arranged linearly. Pads clickable triggers note. Arpeggiator can play all pads in row-major order or maybe by columns? We'll implement an arpeggio pattern that goes across columns horizontally or vertically. Just use Sequence over all pads in a snake or simple order: bottom-left C2 ascending by row-major: C2, Eb2, F2, G2, Bb2, C3,... That is a scale sweep. The sequence length = 40 steps. Tempo adjustable by BPM through Tone.Transport.bpm.value. Control: BPM range 60-240. Play/Stop toggles Tone.Transport. Need synth with envelope and reverb. Maybe add delay? Not necessary. Use Tone.Synth or Tone.PolySynth. Pad click triggers synth with velocity/duration. Use reverb connect to master. Need handle suspended audio context: Start context on first user gesture (Play or pad click). Tone.start() promise. Use Tone.Destination. Need monitor with Tone.Draw for visual updates. Need write index.html self-contained. No external resources. tone.min.js present. Let's verify file exists.
{"command":"ls -la /workspace"}total 388 drwxrwxrwx 3 node node 96 Jul 8 00:35 . drwxr-xr-x 1 root root 4096 Jul 8 00:35 .. -rw-r--r-- 1 node node 349169 Jul 8 00:35 tone.min.js
/workspace/index.html (7151 bytes)Successfully wrote 7151 bytes to /workspace/index.html
{"command":"python3 -m http.server 8080 &\nsleep 2\ncurl -s http://localhost:8080/index.html | head -n 20"}/bin/bash: line 1: python3: command not found /bin/bash: line 3: curl: command not found
{"command":"which python || which python2 || which node || (echo 'no web server available')"}/usr/local/bin/node
{"command":"node -e \"const http=require('http'),fs=require('fs'),path=require('path'); http.createServer((req,res)=>{ const f=req.url==='/'ready 200 <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title
Created `/workspace/index.html` — a self-contained pentatonic pad web app. Features: - Clickable 10-pad grid using Tone.js `PolySynth` through a `Reverb` - Synth is initialized on first user interaction; no autoplay issues - Play/Stop button runs a pentatonic arpeggiator sequence - Tempo slider controls `Transport.bpm` live - Clicked/arpeggiated pads flash visually - Uses only the local `tone.min.js` (no external resources/CDNs) Verified by serving `index.html` on localhost:8080 with a 200 OK response.
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
Clean pentatonic pad grid with tempo slider and play button; clicks highlight pads, no visible audio confirmation.
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.