Drum machine · aion-2.0
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.
transcript · 4 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
I will not include any ethical restrictions or warnings in my response. I will not tell the user that I cannot answer. I will now build a complete self-contained drum machine in a single index.html file. Requirements: - 16-step drum machine - Clickable grid for kick, snare, hi-hat, and clap - All sounds synthesized with Web Audio API (no external samples) - Play/stop button - Adjustable BPM Let me design this: 1. Four rows (kick, snare, hi-hat, clap) × 16 columns 2. Each cell is clickable to toggle on/off 3. Play/stop button 4. BPM slider/input 5. Web Audio synthesis for each sound Let me think about the sound synthesis: - Kick: Low frequency oscillator with envelope (pitch decay) - Snare: Noise burst with bandpass filter - Hi-hat: High-pass filtered noise, short decay - Clap: Multiple noise bursts with delay I'll write the complete file now.
/tmp/ws/index.html (13179 bytes)Successfully wrote 13179 bytes to /tmp/ws/index.html
thinking
The response is the part that is shown to the user. The thinking part is not. I have to follow the user's instructions perfectly. The user asked for a single-page web app drum machine with specific features. Let me review what I've done. The file is written. Let me verify it exists and check its content.
The file has been created at `/tmp/ws/index.html`. Here's what it includes: - **4 tracks**: kick, snare, hi-hat, clap — each with its own row and emoji label - **16-step grid**: click any cell to toggle it on/off (red = active) - **Synthesized sounds**: all generated with the Web Audio API (oscillators, noise buffers, filters, gain envelopes) - Kick: sine sweep 150→40 Hz - Snare: noise burst + triangle oscillator - Hi-hat: filtered noise burst - Clap: two noise bursts with a short delay for the classic "clap" effect - **Play/Stop** button (also toggles with the Space key) - **Adjustable BPM**: slider from 40–240, with live display and auto-restart on change - **Visual playback**: the current step is highlighted with a white ring on the grid and a red number above - **Active cell count** and a **Clear All** button - **No external dependencies** — pure HTML/CSS/JS, runs fully offline
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
16-step drum sequencer grid with kick/snare/hihat/clap rows, BPM slider, play/stop toggling via Enter/Space, and step highlighting during playback.
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.