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Roland MX-1: MIDI CC, NRPN and OSC map

The Roland MX-1 as named OSC addresses — 55 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Roland MX-1
Vendor Roland
OSC prefix /mx_1
Source 📦 Derived from MIDI Guide (community CC/NRPN data)
Firmware unknown
Revision per pencilresearch canonical CSV
Upstream pencilresearch
Data licence CC-BY-SA-4.0 — MIDI Guide (https://midi.guide) by Pencil Research and contributors
Driver file devices/roland/mx_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.

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/roland/mx_1.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /mx_1/tone1 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as mx_1: ask “what can the Roland MX-1 do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (55)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/mx_1/tone1 3 0–127 continuous
/mx_1/tone2 9 0–127 continuous
/mx_1/tone3 14 0–127 continuous
/mx_1/tone4 15 0–127 continuous
/mx_1/tone56 16 0–127 continuous
/mx_1/tone_digital 17 0–127 continuous
/mx_1/tone_usb1 18 0–127 continuous
/mx_1/tone_usb2 19 0–127 continuous
/mx_1/tone_usb3 20 0–127 continuous
/mx_1/tone_usb4 21 0–127 continuous
/mx_1/tone_pc 22 0–127 continuous
/mx_1/level1 23 0–127 continuous
/mx_1/level2 24 0–127 continuous
/mx_1/level3 25 0–127 continuous
/mx_1/level4 26 0–127 continuous
/mx_1/level56 27 0–127 continuous
/mx_1/level_d 28 0–127 continuous
/mx_1/level_usb1 29 0–127 continuous
/mx_1/level_usb2 30 0–127 continuous
/mx_1/level_usb3 31 0–127 continuous
/mx_1/level_usb4 35 0–127 continuous
/mx_1/level_pc 41 0–127 continuous
/mx_1/mute1 46 0–127 continuous
/mx_1/mute2 47 0–127 continuous
/mx_1/mute3 48 0–127 continuous
/mx_1/mute4 49 0–127 continuous
/mx_1/mute56 50 0–127 continuous
/mx_1/mute_digital 51 0–127 continuous
/mx_1/mute_usb1 52 0–127 continuous
/mx_1/mute_usb2 53 0–127 continuous
/mx_1/mute_usb3 54 0–127 continuous
/mx_1/mute_usb4 55 0–127 continuous
/mx_1/mute_pc 56 0–127 continuous
/mx_1/mfx1 57 0–127 continuous
/mx_1/mfx2 58 0–127 continuous
/mx_1/mfx3 59 0–127 continuous
/mx_1/mfx4 60 0–127 continuous
/mx_1/mfx56 61 0–127 continuous
/mx_1/mfx_digital 62 0–127 continuous
/mx_1/mfx_usb1 63 0–127 continuous
/mx_1/mfx_usb2 68 0–127 continuous
/mx_1/mfx_usb3 69 0–127 continuous
/mx_1/mfx_usb4 79 0–127 continuous
/mx_1/mfx_pc 80 0–127 continuous
/mx_1/bfx1 81 0–127 continuous
/mx_1/bfx2 82 0–127 continuous
/mx_1/bfx3 83 0–127 continuous
/mx_1/bfx4 84 0–127 continuous
/mx_1/bfx56 85 0–127 continuous
/mx_1/bfx_digital 86 0–127 continuous
/mx_1/bfx_usb1 87 0–127 continuous
/mx_1/bfx_usb2 89 0–127 continuous
/mx_1/bfx_usb3 90 0–127 continuous
/mx_1/bfx_usb4 96 0–127 continuous
/mx_1/bfx_pc 97 0–127 continuous

Performance MIDI

Notes, pitch bend and any CC are also available: /mx_1/note/on <note> <velocity>, /mx_1/cc/<number> <value>, /mx_1/pitchbend <0-16383>, /mx_1/program_change <n>.

Limitations

CC/NRPN only. SysEx (preset management, display control, bulk dump/load, vendor-proprietary opcodes) is NOT covered by pencilresearch. To extend this device with SysEx, sniff the vendor editor, add `sysex.header/footer` + `commands` blocks, and use `update_device.md` PR template.