A playable browser theremin: press anywhere and drag, and your finger becomes the instrument, exactly like the real 1920s electronic instrument played without touching anything. Left to right bends the pitch smoothly across three octaves, up and down controls the volume, and a glowing trail traces your gesture in real time in a color tied to the exact pitch you're playing. Switch to free glide for the authentic eerie continuous slide, or snap to a scale to actually play a recognizable tune, choose a warm or buzzy voice, and toggle the classic hand-tremor vibrato on or off. For anyone searching for an online theremin, a virtual theremin, or a touchscreen instrument that responds to gesture.
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