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OberVave SMK-37

Firmware for SMK-37 Pro / Elite (M-VAVE)

Beta build of zvenson's OberVave 8-voice polysynth for the SMK-37 Pro, Elite and MKE-P37, with the pads as the step sequencer and the faders on filter and effects.

by Sven Trogus (zvenson), genkigenki

ActiveSource: openGPL-3.0-only
M-VAVE SMK-37 Pro MIDI keyboard, top view
Photo: M-VAVE, manufacturer product image, via m-vave.com

Brick risk. Flashing this carries a known, documented risk of damaging the device.

Distribution
Prebuilt image you flash yourself
License notes
Platform code carries Leo Kuroshita's Felucca copyright and SLOOP's changes; LICENSING.md lists who wrote each part, including the SMK-37 board layer by M. Geisler (genkigenki).
Source
github.com https://github.com/zvenson/obervave
Homepage
github.com https://github.com/zvenson/obervave/blob/main/SMK37.md

Description

The same synth, programs and screens as the FM-1 version, with the SMK-37's controls put to work: velocity from the unit's factory curves, wheels for bend and vibrato, and two fader banks. The SMK-37 layer comes from genkigenki's reference port of the fm1-to-smk37 kit. The README says it has not yet run on a real SMK-37. It also lists the Donner Starrykey 37 Play (with the Pro package). There are no key LEDs and no TRS MIDI input.

Install notes

SMK37.md asks for a full flash backup first and says the unit's factory key, pad calibration and Bluetooth pairing data must not be overwritten. It installs one of three model-specific packages with tools/fm1_install.py over USB, from stock or another Felucca-family firmware, in about three minutes. Holding OCTAVE- at power-on starts only the updater. To go back, install your model's factory package with M-VAVE's own updater.

Version history

OberVave SMK-37 version history
VersionDateNotes
1.3.1-beta2026-10-15Git tag; no GitHub release page. Sequencer coloured by track.
1.3-beta2026-10-15Git tag; no GitHub release page.
1.2.1-beta2026-10-14Git tag; no GitHub release page. First SMK-37 packages.

Back to SMK-37 Pro / Elite