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Arpeggiator pad · grok-4.3

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.

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transcript · 8 messages
user

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.

assistant
thinking
The task is: Build a single-page web app in one self-contained file named index.html in the current directory. CSS in <style>, JS in <script>, inline. No external resources, CDNs or network requests. ...
bash {"command":"ls -la"}
toolResult

total 388 drwxrwxrwx 3 node node 96 Jul 22 17:00 . drwxr-xr-x 1 root root 4096 Jul 22 17:00 .. -rw-r--r-- 1 node node 349169 Jul 22 17:00 tone.min.js

assistant
thinking
The tone.min.js file is present. I need to create a single self-contained index.html that uses it via <script src="tone.min.js"></script>.
The task is to 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. Use tone.min.js via script tag. Self-contained index.html.
write index.html (13053 bytes)
toolResult

Successfully wrote 13053 bytes to index.html

assistant
thinking
The single-file self-contained index.html has been created. It uses the pre-existing tone.min.js via a plain script tag. Everything runs fully sandboxed with zero external dependencies.
bash {"command":"ls -la index.html && file index.html"}
toolResult

-rw-r--r-- 1 node node 13063 Jul 22 17:01 index.html /bin/bash: line 1: file: command not found Command exited with code 127

assistant

Done. `index.html` now contains a fully self-contained pentatonic pad web app (Tone.js + reverb included from the local `tone.min.js`). Ready to open.

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

modelgrok-4.3
vendorxAI · Grok
harnesspi-agent
generated2026-07-22

EVALUATION

4/5 working

Pentatonic pad grid with tempo slider and play/stop arp button; clicks, drag, and keys highlight pads and toggle arp 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.

idle motion0.0%
on click2.3%
on drag7.2%
on wheel7.2%
on enter + space3.4%
on arrow keys13.1%
on w/a/s/d6.2%
frame spread26.2 / 255
console errors1
js errors none

METRICS

runtime45.5s
tokens in4.5k
tokens out3.7k
cached8.0k
cost / run$0.0165