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Line 6 M5 Stompbox Modeler: MIDI CC, NRPN and OSC map

The Line 6 M5 Stompbox Modeler as named OSC addresses — 4 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Line 6 M5 Stompbox Modeler
Vendor Line 6
OSC prefix /m5_stompbox_modeler
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/line-6/m5_stompbox_modeler.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/line-6/m5_stompbox_modeler.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /m5_stompbox_modeler/global_control/bypass 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as m5_stompbox_modeler: ask “what can the Line 6 M5 Stompbox Modeler do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (4)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/m5_stompbox_modeler/global_control/bypass 11 0–127 continuous Global / Control
/m5_stompbox_modeler/global_control/tap_tempo 64 0–127 continuous Global / Control
/m5_stompbox_modeler/global_control/expression_pedal 1 0–127 continuous Global / Control
/m5_stompbox_modeler/global_control/tuner_mode 69 0–127 continuous Global / Control

Performance MIDI

Notes, pitch bend and any CC are also available: /m5_stompbox_modeler/note/on <note> <velocity>, /m5_stompbox_modeler/cc/<number> <value>, /m5_stompbox_modeler/pitchbend <0-16383>, /m5_stompbox_modeler/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.