Arpeggiator pad · minimax-m2
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.
transcript · 8 messages
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.
thinking
The user wants me to build a single-page web app with: 1. A pentatonic pad grid that's clickable 2. A synth voice with reverb 3. A play/stop button for an arpeggiator sequence 4. Adjustable tempo control I need to use the pre-provided tone.min.js file. Let me first check what's in the current directory.
{"command":"ls -la /tmp/ws"}total 344 drwxr-sr-x. 2 node node 25 Aug 1 19:41 . drwxrwsrwx. 3 root node 16 Aug 1 19:41 .. -rw-r--r--. 1 node node 349169 Aug 1 19:41 tone.min.js
thinking
Good, I can see tone.min.js is available. Now let me build the web app. I'll create a single HTML file with: 1. A 5x4 or similar grid for the pentatonic scale (5 notes per octave, so we can do multiple octaves) 2. A synth with reverb using Tone.js 3. A play/stop button 4. An arpeggiator sequence 5. A tempo slider The pentatonic scale (major) notes are: 1, 2, 3, 5, 6 (of the major scale) - so in C: C, D, E, G, A I'll create a nice looking interface with CSS and the functionality with JavaScript using Tone.js.
/tmp/ws/index.html (13687 bytes)Successfully wrote 13687 bytes to /tmp/ws/index.html
thinking
I've created the index.html file. Let me verify it exists and has the correct content by reading a portion of it.
{"command":"ls -la /tmp/ws/index.html"}-rw-r--r--. 1 node node 13693 Aug 1 19:42 /tmp/ws/index.html
thinking
The file has been created successfully. Let me provide a summary of what I built: 1. **Pentatonic Pad Grid**: A 5x3 grid (5 notes × 3 octaves) with colored pads for C, D, E, G, A in octaves 2, 3, and 4 2. **Synth Voice with Reverb**: Uses Tone.PolySynth with a triangle8 oscillator and Tone.Reverb effect 3. **Play/Stop Button**: Controls an arpeggiator sequence 4. **Adjustable Tempo**: A slider ranging from 60-240 BPM that controls the arpeggiator speed Features: - Click pads or use keyboard (C, D, E, G, A keys) to play - Visual feedback when notes are triggered - The arpeggiator plays an ascending pattern through all pentatonic notes across octaves - All audio is synthesized - no external files needed - Modern dark UI with gradient backgrounds and glowing effects The file is completely self-contained with inline CSS and JavaScript, using the pre-provided tone.min.js.
I've created a complete pentatonic synth pad application. Here's what's included: **Features:** - **Pentatonic Grid**: 15 pads (5 notes × 3 octaves) - C, D, E, G, A across octaves 2, 3, and 4 - **Synth Voice**: Polyphonic synth with triangle8 oscillator and ADSR envelope - **Reverb**: Built-in reverb effect (decay: 3s, wet: 40%) - **Arpeggiator**: Plays ascending pentatonic pattern through all notes when activated - **Tempo Control**: Adjustable 60-240 BPM slider that updates in real-time - **Keyboard Support**: Press C/D/E/G/A keys (lowercase for octave 2, uppercase for octave 3, x/y/u/i/o for octave 4) **Design:** - Dark gradient background with glowing UI elements - Color-coded pads (red=C, orange=D, green=E, blue=G, purple=A) - Visual feedback with pulse animations when notes trigger - Responsive layout for mobile devices The app uses the pre-loaded `tone.min.js` library and all audio is synthesized - no external files needed. Just open `index.html` in a browser and click any pad to start the audio context.
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
Pentatonic pad grid with play button and tempo slider; click/drag/wheel trigger pad highlights and 'Audio ready!' message.
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.