Can You Play Gesture Synth with One Hand?

Why Gesture Mode Uses Two Hands

A visible left hand can select degrees I through VII and infer the major or minor world, but live volume comes from right-hand height. A visible right hand can change chord quality and expression, but there is no degree root without the left hand. Either half alone is therefore insufficient for the normal live chord path.

This separation is intentional: one hand can hold musical material while the other changes loudness, tone, inversion or octave. It prevents one crowded pose from having to encode every value, but it also means the current release is not a complete single-hand instrument.

Lock Mode and Chord Quality to Reduce Gesture Complexity

Settings can lock the major or minor world and choose a fixed chord quality. This removes the need to communicate those two values through wrist tilt and right-hand finger count, making the two-hand task simpler and more stable.

Fixed settings do not remove the right-hand volume control or the left-hand degree requirement. They reduce simultaneous fine gestures rather than converting the instrument into a one-hand mode. Start with a fixed major triad, modest master volume and slow left-hand degree changes.

Learn each left- and right-hand control →

Theremin Mode Still Separates Pitch and Volume

In Theremin mode, right-hand height sweeps the pitch between the available low and high range, and left-hand height changes volume. Right hand alone changes the pitch value but remains silent because volume is zero. Left hand alone can make the default pitch audible, but it cannot perform a melody.

This behaviour can help diagnose which hand the camera recognises, but it is not presented as full one-hand Theremin performance. Use the on-screen Left and Right indicators and keep the required hand clearly inside the frame.

Open the full online Theremin guide →

Use Grid Editing for a Lower-Motion Workflow

After the sequencer is open, individual steps can be edited directly with labelled controls. Grid editing can reduce the amount of continuous camera movement required to build a loop, although starting the live session and choosing appropriate musical events may still involve the two-hand mapping.

The interface provides keyboard-operable settings and visible status text, but the core camera instrument is not suitable for every motor or visual ability. GestureSynth does not claim therapeutic, rehabilitation or accessibility outcomes; evaluate the controls against your own needs and stop if the movement is uncomfortable.

For a lower-motion composition session, choose a fixed major or minor world and a fixed chord quality before opening the sequencer. Use the camera briefly to establish a few slow degree events, then lower your hands while leaving the session running and correct misplaced steps with the pointer-operated grid. Track selection, mute, solo and transport can then use the documented keyboard shortcuts, while export remains available from its labelled button. Keep the loop short so each step is easy to reach with a pointer. This workflow reduces repeated performance motion; it does not create a true one-hand live mode or guarantee suitability for a particular access need.

Build and edit a four-track loop → · Read the mobile setup guide →