Drum machine · nemotron-3-ultra-550b-a55b
Output generated Cost / run $0.0217 Runtime 19.8s
Prompt for this run
Build a 16-step drum machine with a clickable grid for kick, snare, hi-hat, and clap, all sounds synthesized with the Web Audio API, plus play/stop and an adjustable BPM.
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 · 6 messages
Build a 16-step drum machine with a clickable grid for kick, snare, hi-hat, and clap, all sounds synthesized with the Web Audio API, plus play/stop and an adjustable BPM.
thinking
The user wants a 16-step drum machine with: 1. Clickable grid for kick, snare, hi-hat, and clap (4 tracks × 16 steps) 2. All sounds synthesized with Web Audio API (no samples) 3. Play/stop button 4. Adjustable BPM I'll create a single self-contained index.html file with CSS and JS inline.
/workspace/index.html (18221 bytes)Successfully wrote 18221 bytes to /workspace/index.html
thinking
The file has been created. Let me verify it works by checking the file exists and maybe doing a quick validation.
{"command":"ls -la /workspace/index.html"}-rw-r--r-- 1 node node 18221 Jul 22 16:52 /workspace/index.html
thinking
The file is created successfully. Let me provide a summary to the user.
Created `/workspace/index.html` — a self-contained 16-step drum machine with: - **4 tracks**: Kick, Snare, Hi-Hat, Clap (clickable 16-step grid each) - **Web Audio API synthesis** (no samples): sine-wave kick, noise+triangle snare, filtered noise hi-hat, multi-burst clap - **Play/Stop/Clear** buttons with keyboard shortcuts (Space = play/pause, Esc = stop, Ctrl+C = clear) - **BPM slider** (60–200) with live display - **Visual feedback**: active step column highlight, per-step playing animation, track colors - **Responsive layout** works on mobile Open `index.html` in a browser to use it.