Roland MC-101: MIDI CC, NRPN and OSC map¶
The Roland MC-101 as named OSC addresses — 25 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Roland MC-101 |
|---|---|
| Vendor | Roland |
| OSC prefix | /mc_101 |
| 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/mc_101.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/mc_101.json --out-port <N> --in-port <M>
Then send OSC to 127.0.0.1:7777, for example:
From Claude or any MCP client, the osc-bridge mcp server exposes this driver as mc_101: ask “what can the Roland MC-101 do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (25)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/mc_101/bank_sel_msb |
0 | 0–127 | continuous | ||
/mc_101/mod_wheel |
1 | 0–127 | continuous | ||
/mc_101/port_time |
5 | 0–127 | continuous | ||
/mc_101/volume |
7 | 0–127 | continuous | ||
/mc_101/pan |
10 | 0–127 | continuous | ||
/mc_101/expression |
11 | 0–127 | continuous | ||
/mc_101/hold1 |
64 | 0–127 | continuous | ||
/mc_101/glide_active |
65 | 0–127 | continuous | ||
/mc_101/sostenuto |
66 | 0–127 | continuous | ||
/mc_101/soft |
67 | 0–127 | continuous | ||
/mc_101/legato_foot_switch |
68 | 0–127 | continuous | ||
/mc_101/resonance |
71 | 0–127 | continuous | ||
/mc_101/release |
72 | 0–127 | continuous | ||
/mc_101/attack |
73 | 0–127 | continuous | ||
/mc_101/cutoff |
74 | 0–127 | continuous | ||
/mc_101/decay |
75 | 0–127 | continuous | ||
/mc_101/vib_rate |
76 | 0–127 | continuous | ||
/mc_101/vib_depth |
77 | 0–127 | continuous | ||
/mc_101/vib_dlay |
78 | 0–127 | continuous | ||
/mc_101/filter_knob |
80 | 0–127 | continuous | ||
/mc_101/mod_knob |
81 | 0–127 | continuous | ||
/mc_101/fx_knob |
82 | 0–127 | continuous | ||
/mc_101/sound_knob |
83 | 0–127 | continuous | ||
/mc_101/reverb_send |
91 | 0–127 | continuous | ||
/mc_101/chorus_send |
92 | 0–127 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /mc_101/note/on <note> <velocity>, /mc_101/cc/<number> <value>, /mc_101/pitchbend <0-16383>, /mc_101/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.