Playground

Sound instrument

Gesture Synth

Your left hand picks the chord, your right hand shapes it. Not sure what to play? Try a song.

Left hand not detected

Degree–
Mode–
Semitone0

Right hand not detected

ChordRoot position
OctaveNormal
Filter
Fixed
Volume
Fixed
Raise your left hand
Key C—

Dividui Studio · Sound instrument

Play chords with your hands

In front of the camera, your left hand picks the chord and your right hand shapes it. Hand tracking runs in your browser: images never leave your device.

Left handDegree, major or minor, semitone
Right handInversion, seventh, octave, filter, volume
Camera access is required. Turn up the volume and switch off silent mode.

How to play

Left hand

Picks the chord

Raised fingers → degree

1 finger
I
2 fingers
II
3 fingers
III
4 fingers
IV
5 fingers
V
index + pinky
VI
+ thumb
VII
fist
silence

Tilt

wrist turned inward
major
wrist turned outward
minor

Height, with Semitone on

upper half
+1 semitone (Raise)
middle band
normal
bottom 20%
−1 semitone (Lower)
Right hand

Shapes the sound

Raised fingers, no thumb → type

1 finger
root position
2 fingers
first inversion
3 fingers
major / minor seventh
4 fingers
dominant / diminished seventh

Thumb

tucked in
normal octave
out
one octave lower

Tilt and height

inward
brighter, with resonance
outward
darker
higher
louder
Without a camera

Play with the keyboard

1–7 degree0 or Space silence M major / minorQWER chord type O octave↑↓ volume←→ filter Left only: volume fixed at 20%