More sound engines
Prophet, GRAIN, SWARM, CLUSTER, CLOUD, FM6, FM TONE, VA, PHASE, BASS and MORPH.
FM1 COMMUNITY FIRMWARE · v61more
more
chords!
A ChoralRoot remix by rosen for the M-VAVE FM1.
Desktop Chrome / Edge · USB MIDI SysEx · HTTPS or localhost
No account, app installation or third-party upload required.
350+factory sounds
64shared USER presets
30loop / sequence slots
What’s in the remix
Build and reshape chords
A paged step sequencer, auditionable progression generation, preset randomization and MORPH crossfading between two presets.
Play with your setup
Velocity-sensitive keys, external MIDI chord controls, synced loops, tempo nudge and USB audio recording.
Two sources. A new way to play.
- GRAIN follows Prophet in the engine list, with real A/B waveforms and source preset names.
- Capture factory sounds from nine engines and reshape them with Position, Size, Density and A/B blend.
- SOURCE A/B preset selection moves one entry per detent, without needing FINE.
- 64 USER presets and 30 loop slots retained; Init preset is in SAVE.
Release identity: FM-1_920 · 610297 bytes. The device reports ChoralRoot 0.14 internally.
SHA-256 410d52b2500d7d79ed1956d425fdc5874c3c7f617df52adb2018e0ece64f06f6What’s changed
Recent releases, newest first. Removed engines listed below are historical changes, not current features.
v61 Original generic FM6 factory bank
- NEW 64 original generic FM6 factory sounds: EP, Bell, Bass, Brass, Pad, Mallet, Organ and Pluck.
- REMOVED Previously imported user bank removed from firmware and distributed source archives.
v60 GRAIN Gain and Spray
- IMPROVED Another +2 dB on GRAIN, +7 dB total over original V58.
- NEW TEXTURE: GAIN replaces RAND; SPRAY replaces PITCH. Gain is ramped, Spray disperses read position without pitch detuning.
v59 GRAIN level
- IMPROVED GRAIN output raised by another 2 dB; total +5 dB over the original V58 level.
v58 GRAIN routing and preset initialization
- FIXED GRAIN cannot be saved or loaded as Bass, including stale USER/settings references.
- PRESERVED GRAIN is excluded from Morph.
- IMPROVED Init preset is available in the SAVE action picker and the HOME collection menu.
v57c GRAIN, closer to hand
- IMPROVED GRAIN is the second engine in the browser, immediately after Prophet.
- FIXED SOURCE A/B preset selection advances one preset per encoder detent, with or without FINE.
v57b Memory margin restored
- FIXED Preset and graphics caches use available ordinary RAM, restoring the required 8 KiB of POOL headroom.
- PRESERVED All 64 USER presets, 30 loop slots and full GRAIN audio buffers are retained.
v57 Meet the two sides of GRAIN
- NEW Actual A/B buffer waveforms, source engine and preset names, generation status, Position cursor and blend display.
- NEW Factory-preset capture from Prophet, FM6, SWARM, CLUSTER, CLOUD, VA, FM TONE, PHASE and BASS, plus eight Original source families.
- IMPROVED GRAINS and TEXTURE pages separate playback controls; SOURCE A/B occupy the former FILTER section.
- REMOVED GRAIN's filter DSP and filter modulation destinations. Existing filter settings no longer colour GRAIN patches.
- IMPROVED Smaller graphics buffers and lossless glyph-cache packing reduce POOL use while preserving tested pixels.
v56 A simpler engine list
- REMOVED DRIFT and WAVE TERRAIN, including their Morph source choices. Stored engine IDs remain reserved.
- FIXED Opening SAVE dismisses the temporary message that could cover Init preset.
v55 GRAIN joins more chords!
- NEW Two generated audio source buffers for GRAIN, with parameters saved in USER presets; the initial native sources were Prophet and FM6.
- NEW 64 compatible FM6 factory sounds imported from the selected FM1 SysEx bank.
- IMPROVED VA uses four chord voices on CPU0 and two on CPU1. Bass follows note velocity during legato changes.
- REMOVED TINES, VECTOR and CZ-1. Their stored IDs remain reserved.
v54 More musical randomization
- IMPROVED Preset randomization focuses on timbre and avoids disruptive pitch changes while protecting native LFO and modulation settings.
- FIXED Clearer Init preset access in SAVE and a smoother VA note start.
Install from your browser
- Fully charge the FM1, connect it directly by USB and keep the computer awake.
- Open the installer in a desktop browser with Web MIDI SysEx support. Close your DAW or other apps using the FM1.
- The page checks the published firmware file. Press Connect & install and allow MIDI SysEx access.
- Keep the downloaded backup. Leave the page open and the FM1 connected until the update completes.
The firmware package matches the v61 file checked with the command-line installer. Browser update tests use simulated devices; a physical FM1 browser update remains to be verified.
Backup, restore and sound files
The installer includes backup/restore and a 64-slot USER sound librarian. Export, import, rename or delete supported sounds; FM6 also supports compatible SysEx files. These are separate from the device’s on-board factory-preset selection. The browser does not upload your backup or SysEx files to a server.
Returning to the original firmware
The installer includes a return-to-stock section. Supply your own unmodified official M-VAVE V15 file; its known SHA-256 is checked locally. Official firmware is not bundled. Some firmware families are refused by the upstream compatibility check; read the installer’s explanation before proceeding.
Credits & licenses
ChoralRoot: u/Quixotic7 and contributors — chord/performance foundation and FM1 integration. Felucca: Leo Kuroshita / @kurogedelic, Hügelton Instruments — platform, DSP, effects and installer protocol. Melodee: Kerem Kilic / Ellic Studio — synthesis and audio components. ORBIT and Monk contributors: adapted engines and keyboard-velocity work. rosen: more chords! remix and visual identity.
Individual engine notices, Dexed/MSFA, Devin Acker, font and SDK licenses remain in the source archive and licensing notes. GPL-3.0-only project; individual components retain their licenses. GPL text · Component licenses.
ChoralRoot · Felucca · Melodee