M-VAVE FM-1 firmware

fm1-chord

Chord machine with a chord sequencer, looper and ear trainer. by math0ne

About

fm1-chord plays the scale's chords on the left white keys and strums them on the right, with extensions on the black keys, a chord sequencer, drum loops, a looper and an ear trainer. Built on Felucca.

Chords and harp

Compatibility

M-VAVE FM-1Declared by the author · latest v0.3 · needs stock V15

Member “works on my unit” reports per release come with the community layer.

Latest release upstream

fm1-chord 0.3 · v0.3 · 9 Oct 2026 · 3 releases listed

fm1-chord-0.3-app.bin · 523 KBSHA-256 37c5df0346381ab753867b3a79c6199e06585fdcff1baa833dc50f3506f252e7
fm1-chord-0.3.fwsc · 596 KBSHA-256 e2d06d0bfd4cd93bb0913494496a526775cb4661a3f2973818c4dd696807d145
LICENSE · 34 KBSHA-256 3972dc9744f6499f0f9b2dbf76696f2ae7ad8af9b23dde66d6af86c9dfb36986
LICENSING.md · 6 KBSHA-256 08effb2541df3c62efc842c7013a9c5f1680ae398a4b3f4fc4a28fd81ba54192
SHA256SUMS · 1 KBSHA-256 2b8549953ff424b5d1aba5ed654651c5d7985fc57f7589897df3ab971381bd38

Synced from the author’s repository on 29 Oct 2026. Files stay with the author; Maru does not host them.

Install and safety

Untested. No compatibility reports yet. Maru has not tested it on hardware.

There is no browser installer. Follow the instructions in the author’s repository.

Maru offers its own install only for open-source releases with a complete install record, after its installer has completed a full install and restore on a physical M-VAVE FM-1.

Put the unit on stock V15 first, and keep your own copy of the stock file from M-VAVE’s downloads so you can go back.
Back up your presets with the current firmware’s own export before installing.
Rescue: none documented for this firmware.
If something goes wrong, follow the recovery ladder.
No browser installer: it installs from a terminal with a script from the repository.