008 Pocket Theremin

1 test · 11 finished runs (0 agent, 11 raw one-shot) · 11 live demos

The prompt

Pocket Theremin: A full-screen theremin: horizontal mouse position sets pitch across two octaves on a pentatonic scale, vertical position sets volume and vibrato depth. Holding the mouse down plays a WebAudio oscillator; a glowing trail and a live waveform display follow the pointer. Keys 1-4 switch waveform. Build it as ONE self-contained HTML file: inline CSS and JavaScript only, no libraries or frameworks, and no external requests of any kind (no CDNs, web fonts, images or audio files); anything visual or audible is made in code (HTML/CSS, SVG, Canvas, WebGL or WebAudio). It must work when opened directly from disk, fit the browser window responsively, and run without console errors. Output ONLY the complete HTML file, starting with <!DOCTYPE html> and ending with </html>, with no explanation or markdown fences.