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Nonlinear Labs C15: MIDI CC, NRPN and OSC map

The Nonlinear Labs C15 as named OSC addresses — 8 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Nonlinear Labs C15
Vendor Nonlinear Labs
OSC prefix /c15
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/nonlinear-labs/c15.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/nonlinear-labs/c15.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /c15/pedals/pedal_1 8191

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as c15: ask “what can the Nonlinear Labs C15 do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (8)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/c15/pedals/pedal_1 20 / 52 0–16383 continuous Pedals
/c15/pedals/pedal_2 21 / 53 0–16383 continuous Pedals
/c15/pedals/pedal_3 22 / 54 0–16383 continuous Pedals
/c15/pedals/pedal_4 23 / 55 0–16383 continuous Pedals
/c15/ribbons/ribbon_1 24 / 56 0–16383 continuous Ribbons
/c15/ribbons/ribbon_2 25 / 57 0–16383 continuous Ribbons
/c15/expression/aftertouch 26 / 58 0–16383 continuous Expression
/c15/velocity/high_resolution_velocity_lsb 88 0–127 continuous Velocity

Performance MIDI

Notes, pitch bend and any CC are also available: /c15/note/on <note> <velocity>, /c15/cc/<number> <value>, /c15/pitchbend <0-16383>, /c15/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.