X0X37
Firmware for SMK-37 Pro / Elite (M-VAVE)
Charles Vestal's X0X groovebox on the SMK-37, with the pads as a 16-step grid. Also builds for the SMK-37 Elite and MKE-P37.

Brick risk. Flashing this carries a known, documented risk of damaging the device.
- Distribution
- Browser installer (WebMIDI / WebUSB)
- License notes
- Same terms as upstream X0X (Open303 is MIT; see LICENSING.md).
- Source
- github.com https://github.com/genkigenki/fm1-x0x
- Homepage
- genkigenki.github.io https://genkigenki.github.io/smk37/
- drums
- synth-engine
- sequencer
- performance
Description
Now lives on the smk37 branch of the genkigenki/fm1-x0x fork; the older genkigenki/X0X37 repository is archived. Upstream pull request: charlesvestal/fm1-x0x#13.
Install notes
Installs from the browser at genkigenki.github.io/smk37. Unofficial; install at your own risk.
Version history
| Version | Date | Notes |
|---|---|---|
| smk37-0.2 | 2026-10-13 | |
| 0.1 (old X0X37 repo) | 2026-10-11 | Archived repository. |