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Piano synth · ling-2.6-1t

No runnable output Cost / run $0.0044 Runtime 43.9s

Prompt for this run

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.

⚠ no runnable output

This one-shot run produced no runnable artifact.

agent produced no index.html

The transcript below shows what the model did — read it to see why the one shot fell short.

TAKE IT TO CODE

This run produced no artifact — reuse the prompt with a different model or your own pi-agent run.

RUN

modelling-2.6-1t
vendorinclusionai
harnesspi-agent
generated2026-08-01

METRICS

runtime43.9s
tokens in11k
tokens out6.6k
cached9.5k
cost / run$0.0044
Transcript · 6 messages
user

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.

assistant

I'll build a playable piano keyboard with Tone.js, ADSR envelope, and visual key feedback. Let me first check what's available in the current directory.

→ bash {"command":"\nls -la\n"}
toolResult

total 344 drwxr-sr-x. 2 node node 25 Aug 1 20:29 . drwxrwsrwx. 3 root node 16 Aug 1 20:29 .. -rw-r--r--. 1 node node 349169 Aug 1 20:29 tone.min.js

assistant

Great, tone.min.js is present. Now I'll create the complete piano keyboard application with all requested features.

→ write index.html (17776 bytes)
toolResult

Successfully wrote 17776 bytes to index.html

assistant

The playable piano keyboard is complete! Here's what I've built: ## Features Implemented: 1. **Playable Piano Keyboard** - 9 white keys (C to C across 2 octaves) and 6 black keys (sharps) arranged in proper piano layout 2. **Mouse Control** - Click any key to play, with visual active-state feedback 3. **Computer Keyboard Control** - - White keys: A S D F G H J K L (C to C) - Black keys: W E T Y U O (C# to C#) 4. **ADSR Envelope** - Customizable attack, decay, sustain, release on all synth voices 5. **Visual Key Feedback** - Keys light up when pressed (blue for white keys, orange for black keys) 6. **Multiple Instruments**: - PolySynth (default) - FM Synth - AM Synth - DuoSynth - Membrane - Pluck 7. **Waveform Selection** - Sine, Triangle, Sawtooth, Square 8. **Effects** - Volume control and Reverb toggle 9. **Multi-note Display** - Shows currently active notes 10. **Audio Context** - Proper Tone.js initialization (requires user interaction) The design uses a dark gradient theme with a realistic piano UI, glass-morphism controls, and smooth animations. All code is self-contained in a single `index.html` file with inline CSS and JavaScript, loading the pre-provided `tone.min.js` library.