Drum machine · qwen3.6-35b-a3b
Output generated Cost / run $0.0042 Runtime 103.2s
Prompt for this run
Build a 16-step drum sequencer using the Web Audio API. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. No third-party libraries are provided. Required behavior: - Show four labeled rows for kick, snare, hi-hat, and clap, each with 16 independently toggleable steps. Start with a simple audible pattern. - Treat the 16 steps as one bar of sixteenth notes in 4/4 time. Provide Play, Stop, Clear, and a BPM control from 60 to 180. - During playback, highlight the current step and synthesize the enabled drum voices. Editing steps or BPM must affect playback without creating duplicate sequences. - Stop cancels future hits and resets the playhead to the first step. Clear disables all steps. Starting again uses the currently displayed pattern. - Unlock audio through a user gesture and synthesize distinct percussion sounds from oscillators/noise and envelopes; do not load audio files. Verify: Toggle a step and start playback. Check that the playhead advances across the grid and responds to a BPM change. Stop and start again, checking that the displayed pattern is retained and the playhead restarts from the first step.
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 · 7 messages
Build a 16-step drum sequencer using the Web Audio API. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. No third-party libraries are provided. Required behavior: - Show four labeled rows for kick, snare, hi-hat, and clap, each with 16 independently toggleable steps. Start with a simple audible pattern. - Treat the 16 steps as one bar of sixteenth notes in 4/4 time. Provide Play, Stop, Clear, and a BPM control from 60 to 180. - During playback, highlight the current step and synthesize the enabled drum voices. Editing steps or BPM must affect playback without creating duplicate sequences. - Stop cancels future hits and resets the playhead to the first step. Clear disables all steps. Starting again uses the currently displayed pattern. - Unlock audio through a user gesture and synthesize distinct percussion sounds from oscillators/noise and envelopes; do not load audio files. Verify: Toggle a step and start playback. Check that the playhead advances across the grid and responds to a BPM change. Stop and start again, checking that the displayed pattern is retained and the playhead restarts from the first step.
thinking
The user wants me to build a 16-step drum sequencer using the Web Audio API. Let me create a comprehensive, self-contained HTML file with: 1. Four drum rows (kick, snare, hi-hat, clap) with 16 toggleable steps each 2. Play, Stop, Clear, and BPM controls (60-180) 3. Playhead highlighting during playback 4. Web Audio API synthesis for distinct drum sounds 5. Audio context unlock via user gesture 6. Clean pattern editing without duplicate sequences Let me build this step by step.
/tmp/job-OfHjEn/index.html (14049 bytes)Successfully wrote to /tmp/job-OfHjEn/index.html
thinking
The file has been written. Now let me open it in the browser to verify it works correctly.
{"action":"screenshot"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: drum is not defined"],"dom":"🥁 16-Step Drum Sequencer\n▶ Play\n⏹ Stop\n✕ Clear\nBPM:\n120\nKICK\nSNARE\nHIHAT\nCLAP","images":"attached"}
thinking
The error "drum is not defined" suggests there's an issue in the JavaScript code. Let me read the current file to identify the problem.
Let me read the file to find the error. <tool_call> <|im_start|> <parameter=read> </parameter> <parameter=file> /tmp/job-OfHjEn/index.html </parameter> </parameter> </parameter> </parameter> </tool>