Piano synth · qwen3.5-plus-02-15
Using the pre-provided tone.min.js (global Tone), build a playable piano keyboard controlled by mouse and computer keys that synthesizes notes with an ADSR envelope and visual key feedback.
transcript · 6 messages
Using the pre-provided tone.min.js (global Tone), build a playable piano keyboard controlled by mouse and computer keys that synthesizes notes with an ADSR envelope and visual key feedback.
thinking
The user wants me to create a single-page web app with a playable piano keyboard. I need to: 1. Use the pre-provided tone.min.js library (loaded via `<script src="tone.min.js"></script>`) 2. Create a piano keyboard that can be played with mouse clicks and computer keys 3. Use Tone.js for sound synthesis with ADSR envelope 4. Add visual feedback when keys are pressed 5. Everything must be in one self-contained index.html file Let me create this piano keyboard app with: - A visual piano keyboard with white and black keys - Mouse click support for playing notes - Computer keyboard support (mapping keys like A, S, D, F, etc. to piano notes) - ADSR envelope for the synthesizer - Visual feedback (highlighting pressed keys) - No external resources - everything inline I'll use Tone.js's Synth or PolySynth with an ADSR envelope for the sound synthesis.
/tmp/ws/index.html (15822 bytes)Successfully wrote 15822 bytes to /tmp/ws/index.html
thinking
I've created a complete, self-contained piano keyboard web app in index.html. Let me verify the file was created successfully.
{"command":"ls -la /tmp/ws/index.html"}-rw-r--r--. 1 node node 15826 Aug 1 20:30 /tmp/ws/index.html
Done! I've created a complete single-page piano keyboard web app in `/tmp/ws/index.html` with: **Features:** - **24 keys** (C4 to B5) with white and black keys properly positioned - **Mouse control** - click, drag across keys, and release to play - **Keyboard control** - mapped to Z-M for lower octave, Q-U for upper octave (with black keys on S, D, G, H, J, 2, 3, 5, 6, 7) - **ADSR envelope** - adjustable Attack, Decay, Sustain, and Release parameters via sliders - **Volume control** - master volume slider - **Visual feedback** - keys light up gold (white) or orange (black) when pressed - **Current note display** - shows which note is playing - **Tone.js PolySynth** - uses triangle oscillator with full polyphony **How it works:** 1. Click the overlay to initialize the audio context 2. Play with mouse (click/drag) or computer keyboard 3. Adjust ADSR sliders to shape the sound envelope 4. Visual key feedback shows active notes
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
Virtual piano renders cleanly with ADSR sliders; click, wheel, and keyboard keys (Q) highlight keys and update current note.
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.