Roland MC-2oh2: MIDI CC, NRPN and OSC map¶
The Roland MC-2oh2 as named OSC addresses — 43 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Roland MC-2oh2 |
|---|---|
| Vendor | Roland |
| OSC prefix | /mc_2oh2 |
| 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_2oh2.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_2oh2.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_2oh2: ask “what can the Roland MC-2oh2 do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (43)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/mc_2oh2/filter/lfo_amount |
33 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/lfo_freq |
34 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/lfo_shape |
35 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/lfo_sync |
36 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/lfo_dly |
38 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/lfo_divider |
37 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/lfo_reset |
39 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/adsr_amount |
21 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/adsr_dly |
22 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/adsr_attack |
23 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/adsr_decay |
24 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/adsr_sustain |
25 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/adsr_release |
26 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/adsr_loop |
27 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/adsr_invert |
28 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/accent_amount |
29 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/accent_attack |
30 | 0–127 | continuous | Filter | |
/mc_2oh2/filter/accent_decay |
31 | 0–127 | continuous | Filter | |
/mc_2oh2/pulsewidth/pw_adsr_amount |
40 | 0–127 | continuous | Pulsewidth | |
/mc_2oh2/pulsewidth/pw_adsr_dly |
41 | 0–127 | continuous | Pulsewidth | |
/mc_2oh2/pulsewidth/pw_adsr_attack |
42 | 0–127 | continuous | Pulsewidth | |
/mc_2oh2/pulsewidth/pw_adsr_decay |
43 | 0–127 | continuous | Pulsewidth | |
/mc_2oh2/pulsewidth/pw_adsr_sustain |
44 | 0–127 | continuous | Pulsewidth | |
/mc_2oh2/pulsewidth/pw_adsr_release |
45 | 0–127 | continuous | Pulsewidth | |
/mc_2oh2/pulsewidth/pw_adsr_loop |
46 | 0–127 | continuous | Pulsewidth | |
/mc_2oh2/pulsewidth/pw_adsr_invert |
47 | 0–127 | continuous | Pulsewidth | |
/mc_2oh2/mod/accent |
48 | 0–127 | continuous | Mod | |
/mc_2oh2/mod/filter_accent |
49 | 0–127 | continuous | Mod | |
/mc_2oh2/mod/porta |
50 | 0–127 | continuous | Mod | |
/mc_2oh2/mod/noise |
51 | 0–127 | continuous | Mod | |
/mc_2oh2/noise/amount |
52 | 0–127 | continuous | Noise | |
/mc_2oh2/noise/attack |
53 | 0–127 | continuous | Noise | |
/mc_2oh2/noise/decay |
54 | 0–127 | continuous | Noise | |
/mc_2oh2/noise/quality |
55 | 0–127 | continuous | Noise | |
/mc_2oh2/general/velocity_link |
60 | 0–127 | continuous | General | |
/mc_2oh2/general/pw_amount |
70 | 0–127 | continuous | General | |
/mc_2oh2/general/filter_amount |
74 | 0–127 | continuous | General | |
/mc_2oh2/general/clock_source |
102 | 0–127 | continuous | General | |
/mc_2oh2/general/clock_divider_ch1 |
103 | 0–127 | continuous | General | |
/mc_2oh2/general/clock_divider_ch2 |
104 | 0–127 | continuous | General | |
/mc_2oh2/general/clock_divider_ch3 |
105 | 0–127 | continuous | General | |
/mc_2oh2/general/clock_divider_all_ch |
107 | 0–127 | continuous | General | |
/mc_2oh2/general/speaker_on_off |
109 | 0–127 | continuous | General |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /mc_2oh2/note/on <note> <velocity>, /mc_2oh2/cc/<number> <value>, /mc_2oh2/pitchbend <0-16383>, /mc_2oh2/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.