How it works

Five moves. One instrument.

CoSynth is a tone designer, not a loop blender. You forage a sustained tone out of a living source, blend four of them, then lock and export.

  1. 01SEEK

    Slide to any moment in the infinite piece. A CoSynth source isn't a loop — it's a living, deterministic generative composition that never exactly repeats.

  2. 02SCRUB

    Freeze a single grain into a sustained tone. The river stops; one drop holds.

  3. 03LOOP

    Set how much of the source loops: from a ~2 ms pitched buzz, through a sustained tone, up to a ~4 s evolving loop.

  4. 04BLEND

    Place four frozen tones on the XY pad and morph between them. Steer with mouse, touch, arrow keys / WASD, or an Atari joystick — red button locks.

  5. 05LOCK + EXPORT

    Save the RECIPE — a tiny, re-editable, shareable address that regenerates the exact sound — or bounce a WAV.

Punchline

The patch is an address into a deterministic engine — kilobytes, perfectly reproducible, infinitely re-editable.

The sound is an address, not a sample.