M-VAVE FM-1 (FiMba-1 0.6.1) MIDI CC chart, NRPN and OSC map¶

The M-VAVE FM-1 MIDI implementation: 10 CC, 2 SysEx commands, each named, for Claude (MCP), SuperCollider or any OSC app.

Device	M-VAVE FM-1
Vendor	M-VAVE
OSC prefix	`/fm1_fimba`
Source	📘 From the manufacturer's documentation
Firmware	fimba-0.6.1
Revision	FiMba-1 0.6.1 (alternative firmware by jadamsowers)
Upstream	vendor-doc
Driver file	`devices/m-vave/fm-1.vendor.fw-fimba-0.6.1.json`

Not tested on the device yet

This driver comes from documentation or community data and has not been checked on real hardware. If you own one, a quick test and a pull request promoting it helps everyone — see CONTRIBUTING.

Other versions of the M-VAVE FM-1 (93)

stock firmware V15 · stock firmware V16 · 386DX 1.0.2 · AMB-1 1.3 · BEETLE 1.4.25 · Bunker Evolved 1.0.0 · Bytemania 1.2.0 · Carnac OS 0.9.3 · Chipbox 1.2.4 · ChoralRoot 0.26.1 · fm1-chord 0.3 · Clipper 1.1-experimental · CoralFlower 0.5 · CS-1 2026.10.22 · CTL-1 1.0 · Cut-A-Dor 1.2.1 · Dinghy 0.4 · DRIFT 0.8 · DUB-1 1.3.0 · DUELL 1.0 · Evander's Music Box 1.5.2 · ETCH 1.61 · Fart Machine One 1.1.0 · Felucca 1.6.1 · Felucca [Salt] 0.9-salt14 · Felucca 8 Patterns 1.6.1_and_sequences · Flyfish 1.0.1-4e5efb8 · FM-106 Beta4 · FM1-GM 1.0.2 · FMEL-1 1.0 · FMini-1 1.8.0 · FOMAJAM 0.1.6 · FoMni 0.4 · FRASIL 1.0 · Frodhes 0.9.4 · FuMi-1 1.1.0 · Pocket GammaWave 1.0-GW · GHOULBOX 2.3.2 · Golana 1.2 · Golana DZ Edition 0.1.0-beta · GR!MM 1.0 · HERA 1.1 · Hortator 0.23.3 · HYP-1 1.5.54 · Jangada 1.0.1 · JIANT FM 0.9.9-beta4a-813869d · KAWA 0.5 · Ketch 0.1-beta · LOOM-8 0.7 · MAKU 1.0 · MC-1 1.2.0 · Melodee 1.4.5 · MIN-1 0.2.1 · Mini-Tone 1.0.2 · MODELAR 0.3 · MONK-1 0.9.1 · MORPHEUS 1.0.0 · Mutable Dreams 1.0 · MYCELIUM 1.0-test · Niagara Drift 0.2 · No Man Sky FM 0.5 · NOIZ DEMONS 666 · OberVave 3.0.1 · FM1 Open V14 · OPN-1 2.0.0 · ORBIT 0.7.1 · PIGEON 0.5.0-beta.1 · Polly 0.5 · PurpleMonkey 0.11 · FM1 Quest 38 · Rainbow Mode 1.1.5-rb · Shine On 3.0.1 · FM-1 SID 0.1 · SID-1 1.0.0 · SIDOU 0.3.1 · Skiff 1.4 · SLOOP 2.8.1 · SLOOP ALG ALG05-TEST · SLOOP DX7 Banks 2.5-b28-test · SLOOP Floyd FM 2.4 · sloopDX 4.0 · Tessera 2.0.1 · Tonitor 2026.10.23 · TRIBE 0.3-beta · Tuna 1.0-fbc56d3 · Unholy Union 0.2.3 · Vector37 0.3.2 · WaveLoop FM-1 1.0.5.2-midi23 · winampFM Synth 0.12 · X0X 1.1.0 · X0X-RMX 1.1.0 · ZEN-1 1.2 · zp12 2.5

Try it in your browser

Play a virtual FM-1 with any of its community firmwares: M-VAVE FM-1.

How do you control it?¶

Find the MIDI ports, then start the bridge with this driver:

osc-bridge detect        # prints the ready-to-run line for what is plugged in
osc-bridge run --device devices/m-vave/fm-1.vendor.fw-fimba-0.6.1.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /fm1_fimba/mod_wheel_finger_over_the_sound_hole_wah 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as fm1_fimba: ask “what can the M-VAVE FM-1 do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (10)¶

OSC address	CC	Range	Nature	Section
`/fm1_fimba/mod_wheel_finger_over_the_sound_hole_wah`	1	0–127	continuous	Track
`/fm1_fimba/sustain`	64	0–127	switch	Track
`/fm1_fimba/decay`	72	0–127	continuous	Track
`/fm1_fimba/hardness`	73	0–127	continuous	Track
`/fm1_fimba/tone`	74	0–127	continuous	Track
`/fm1_fimba/reverb`	91	0–127	continuous	Track
`/fm1_fimba/grains`	93	0–127	continuous	Track
`/fm1_fimba/delay`	94	0–127	continuous	Track
`/fm1_fimba/all_sound_off`	120	0–127	trigger	Track
`/fm1_fimba/all_notes_off`	123	0–127	trigger	Track

SysEx commands (2)¶

OSC address	Arguments
`/fm1_fimba/program`	program: u7
`/fm1_fimba/system/info`

Performance MIDI¶

Notes, pitch bend and any CC are also available: /fm1_fimba/note/on <note> <velocity>, /fm1_fimba/cc/<number> <value>, /fm1_fimba/pitchbend <0-16383>, /fm1_fimba/program_change <n>.

Limitations¶

FiMba-1 0.6.1 by jadamsowers (GPL-3.0), a instrument firmware for the FM-1. Channels: Setup 'MIDI ch': Omni (default) or 1-16, single receive channel for everything except clock (ui.c:531). VERIFIED-SOURCE ui.c:520-556 note on plucks the tine of that pitch at that velocity; note off damps when Release=Damp. TRS jack is MIDI IN only (channel messages and F8/FA/FB/FC; SysEx ignored), merged with USB into one queue (midi_uart.c:3-7). Pitch bend: 14-bit, fixed +/-2 semitones on every ringing tine; no RPN (ui.c:550, dsp/kalimba.c:1375-1376). Aftertouch: Channel pressure = finger over the hole (HOLE_PRESS) (ui.c:548-549); poly AT ignored. Clock: In: F8/FA/FB/FC on any channel drive the pattern (Start resets the cycle, Stop holds) (ui.c:525-527). No clock out, no SPP. MIDI out: USB, 'MIDI out' Setup param, default Off: panel keys as notes on the Setup channel (ch1 when Omni) (ui.c:238-245). NRPN: none (no RPN either). SysEx `F0 (pack7: 00 59 cmd len24 body chk) F7`: M-VAVE update protocol: identify (cmd 0x11, the F0 00 32 45 00 00 00 40 7F F7 query) answers the 27-byte package identity (FELUCCA_ID); read requests 0x30 during an install. SysEx `F0 22 24 35 7F F7`: start an update session (M-UPGRADE pull). SysEx `F0 22 24 35 7D F7`: soft key: reboot into UBOOT / mask-ROM loader (never send). SysEx `F0 7D 46 4C`: absent: no Felucca editor protocol (no editor.c), so no INFO reply. SysEx `F0 43`: absent: no raw DX7 voice/bank parser. SysEx `F0 7E 7F 06 01`: absent: no Universal Identity reply. Identity: Vendor identify: 'FM-1_800' (main.c default) / release build 'FM-1_8000601 for 0.6.1' (tools/build.py --release). No editor INFO, no Universal Identity. USB product 'FiMba FM-1'. Update loader shows as 'ota-FM-1_015'.

Frequently asked questions¶

How many parameters of the M-VAVE FM-1 can be controlled over MIDI?

SynthHub's map of the M-VAVE FM-1 lists 10 MIDI CC parameters, each with its number, range and a readable name; the full chart is on this page.

Can an AI agent like Claude control the M-VAVE FM-1?

Yes: SynthHub's hosted MCP server knows the M-VAVE FM-1's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.