Observed arrival · 2026-09-18
HandSynth Turns Hand Gestures Into a Browser Instrument
A webcam-controlled synth that maps hand movements to chords, theremin-like pitch, sound shaping, recording, and MIDI output.
○Open
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Musicians experimenting with browser-based gesture control
- Worth noticing
- Left-hand finger counts select chords while right-hand gestures shape pitch, volume, brightness, and vibrato.
Field notes
The instrument uses a webcam hand-tracking model to translate finger counts, hand tilt, pinching, and hand position into chords and continuous sound controls. Its chord system covers degrees I through VII, minor tilt, inversions, sevenths, four named sounds, and an optional beat. The page also exposes tracking and audio latency, provides touch and keyboard fallbacks, and describes MIDI output for external music software.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue