LEFT — degree: — RIGHT — voicing: —

Gesture Synth Guide

Left hand — fingers (degree): 1→I · 2→II · 3→III · 4→IV · 5→V
index+pinky→VI · index+pinky+thumb→VII
Left hand — tilt: inward = major, outward = minor
Right hand — fingers (voicing): 1→root · 2→1st inversion · 3→7th chord · 4→altered 7th (dom7/dim7)
Right hand — thumb: in = higher octave, out = lower octave
Right hand — tilt: inward = more filter, outward = less filter
Right hand — height: higher = louder, lower = softer
Fist (no fingers) on the left hand = silence. No right hand = root position, default filter/volume.
no chord
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Hand-tracked synth

Gesture Chord Synth

Left hand picks the scale degree (finger count, plus index+pinky combos) and major/minor (tilt). Right hand picks the voicing (finger count), octave (thumb), filter (tilt), and volume (hand height). Hold a shape to sustain it, drop your hands to go quiet.