M-VAVE FM-1 (X0X-RMX 1.1.0) MIDI CC chart, NRPN and OSC map¶

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

Device	M-VAVE FM-1
Vendor	M-VAVE
OSC prefix	`/fm1_x0xrmx`
Source	📘 From the manufacturer's documentation
Firmware	x0xrmx-1.1.0
Revision	X0X-RMX 1.1.0 (alternative firmware by Mr-Roboto (Oliver))
Upstream	vendor-doc
Driver file	`devices/m-vave/fm-1.vendor.fw-x0xrmx-1.1.0.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 · FiMba-1 0.6.1 · 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 · 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-x0xrmx-1.1.0.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /fm1_x0xrmx/system/info

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as fm1_x0xrmx: ask “what can the M-VAVE FM-1 do?” and it reads this map with list_routes. See the MCP guide.

SysEx commands (2)¶

OSC address	Arguments
`/fm1_x0xrmx/system/info`
`/fm1_x0xrmx/system/identify`

Performance MIDI¶

Notes, pitch bend and any CC are also available: /fm1_x0xrmx/note/on <note> <velocity>, /fm1_x0xrmx/cc/<number> <value>, /fm1_x0xrmx/pitchbend <0-16383>, /fm1_x0xrmx/program_change <n>.

Limitations¶

X0X-RMX 1.1.0 by Mr-Roboto (Oliver) (GPL-3.0), a groovebox firmware for the FM-1. MIDI handling identical to X0X 1.1.0 (midi_in, channels, GM notes, clock); X0X's own map, not Felucca's; Editor INFO still reports 'X0X \<version>', not RMX; README claims USB project backup/restore over Web MIDI SysEx, but no backup handler is in the orb-remix source (reference X0X includes backup.c, this tree does not); Lacks the reference X0X's screen-reader announce frames and debug CORES/PERFT editor commands. Channels: One channel per machine, each off-able (GLO): 909 ch10, 808 ch11, 303A ch2, 303B ch3, break ch4 (firmware/src/app/project.c:492, seq/sequencer.c:32). Pitch bend: ignored. Aftertouch: ignored. Clock: In: F8 followed, FA/FB/FC honoured (USB and TRS). Out: F8 + FA/FB/FC when internal and clock-out on (default on) (app/engine.c:527-531, seq/sequencer.c:442-579). MIDI out: USB: clock/transport (default on); optional note out (default off) of drum hits on GM notes and 303 notes on the machines' channels (seq/sequencer.c:180-232). NRPN: none. SysEx `F0 7D 46 4C`: X0X editor subset: INFO(1), sample commands 11-16, PING(25); debug PEEK/POKE/CLOCK only in dev builds. SysEx `F0 00 32 45`: M-VAVE update protocol (identify -> FELUCCA_ID). SysEx `F0 22 24 35 7D F7`: UBOOT soft key (Felucca's): reboots to mask ROM. SysEx `F0 43`: absent (no FM engine). Identity: Vendor identify: dev FM-1_900 (x0x.c:41); release builds FM-1_9XXYYZZ, so v1.1.0 -> FM-1_9010100 (tools/build.py). Editor INFO 'X0X 1.1.0' (app/editor.c:167). No Universal Identity. USB manufacturer 'X0X', product 'X0X FM-1' (usb.c:211-217). It reads no CC.

Frequently asked questions¶

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.