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Arpeggiator pad · glm-5

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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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 user wants me to build a single-page web app with:
1. A clickable pentatonic pad grid that triggers synth voices with reverb
2. A play/stop button for an arpeggiator sequence
3. Adjustable tempo
4. All sound synthesized using Tone.js (tone.min.js is already available)

Let me create an index.html file that includes:
- CSS styling for a nice pad grid
- JavaScript using Tone.js for:
  - A synth with reverb
  - Clickable pads that play pentatonic scale notes
  - An arpeggiator sequence
  - Play/stop controls
  - Tempo adjustment

Let me write this as a single self-contained HTML file.
write /workspace/index.html (11334 bytes)
toolResult

Successfully wrote 11334 bytes to /workspace/index.html

assistant
thinking
I've created a complete single-page web app with:

1. **Pentatonic Pad Grid**: A 5x2 grid of clickable pads that play notes from C major pentatonic scale (C, D, E, G, A) across two octaves. Each pad has:
   - Unique color based on note
   - Visual feedback on click (ripple effect + scale animation)
   - Touch and mouse support

2. **Synth with Reverb**: 
   - Main synth uses sine waves with a nice envelope
   - Connected to a reverb effect for spacious sound
   - Separate arpeggiator synth with triangle waves and its own reverb

3. **Play/Stop Button**: Toggles the arpeggiator on/off with visual state changes

4. **Tempo Slider**: Adjustable from 60-200 BPM, updates the arpeggiator in real-time

5. **Arpeggiator**: Plays through the pentatonic scale ascending, highlights the corresponding pads as it plays

6. **Keyboard Support**: 
   - Keys 1-5 for lower octave
   - Keys Q-T for upper octave
   - Space bar to toggle play/stop

7. **Visual Design**: 
   - Dark gradient background
   - Glowing buttons with smooth animations
   - Tempo display and current note indicator

All synthesized sound using Tone.js - no audio files needed.

I've created a complete pentatonic pad grid web app. Here's what it includes: **Features:** - **5x2 Pad Grid** - Clickable pads spanning C major pentatonic scale (C, D, E, G, A) across 2 octaves, each with unique colors - **Synth + Reverb** - Sine wave synth with lush reverb for pad clicks; separate triangle wave synth for the arpeggiator - **Play/Stop Button** - Toggles the arpeggiator sequence with visual state feedback - **Tempo Slider** - Adjustable 60-200 BPM, updates in real-time - **Arpeggiator** - Cycles through all pentatonic notes, highlighting pads as they play - **Keyboard Support** - Keys 1-5 and Q-T trigger pads; Spacebar toggles play/stop - **Visual Feedback** - Ripple effects, glow highlights, and smooth animations All sound is fully synthesized using Tone.js - no audio files required.

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

modelglm-5
vendorZ.ai · GLM
harnesspi-agent
generated2026-07-22

EVALUATION

4/5 working

Pentatonic pad grid with play/stop arpeggiator and tempo slider; pads light up on click and 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.

idle motion0.0%
on click0.6%
on drag0.7%
on wheel0.6%
on enter + space2.3%
on arrow keys1.8%
on w/a/s/d1.6%
frame spread40.4 / 255
console errors0
js errors none

METRICS

runtime74.5s
tokens in3.7k
tokens out4.0k
cached3.0k
cost / run$0.0102