Piano synth · gemini-3.1-flash-lite
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
**Building Interactive Piano** I'm focusing on integrating `Tone.js` directly within a single HTML file. My current work involves setting up the synthesizer and ADSR envelope, aiming for immediate visual feedback tied to key presses. **Developing Piano Keys** I'm currently structuring the HTML for the piano keys and styling them with CSS using Flexbox. The JavaScript is being developed to handle user input, mapping keyboard and mouse events to trigger notes via `Tone.PolySynth`. My aim is to implement audio context resumption after a user gesture and define the initial set of notes.
{"command":"ls -l tone.min.js"}-rw-r--r-- 1 node node 349169 Jul 22 17:51 tone.min.js
index.html (3629 bytes)Successfully wrote 3629 bytes to index.html
This self-contained `index.html` file uses the provided `tone.min.js` to create a playable piano interface. It features: * **Audio Synthesis**: Uses `Tone.PolySynth` with a triangle oscillator and defined ADSR (Attack, Decay, Sustain, Release) settings. * **Keyboard Control**: Maps computer keyboard keys (A, W, S, E, D, F, T, G, Y, H, U, J, K) to specific notes starting from C4. * **Mouse Interaction**: Click and drag on the on-screen keys to play notes. * **Visual Feedback**: Keys highlight when pressed. * **Browser Readiness**: Includes a "Start Audio" button to comply with modern browser policies regarding audio context initialization. You can now open `index.html` in your browser to play.
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
Piano keyboard renders with key labels but shows no visible key-press feedback or change after any tested input.
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.