KORG opsix: MIDI CC, NRPN and OSC map¶
The KORG opsix as named OSC addresses — 39 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | KORG opsix |
|---|---|
| Vendor | KORG |
| OSC prefix | /opsix |
| 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/korg/opsix.pencilresearch.fw-unknown.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.
Other variants of this device: opsix.
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/korg/opsix.pencilresearch.fw-unknown.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 opsix: ask “what can the KORG opsix do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (39)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/opsix/algorithm |
70 | 0–127 | continuous | ||
/opsix/op1_lvl |
102 | 0–127 | continuous | ||
/opsix/op2_lvl |
103 | 0–127 | continuous | ||
/opsix/op3_lvl |
104 | 0–127 | continuous | ||
/opsix/op4_lvl |
105 | 0–127 | continuous | ||
/opsix/op5_lvl |
106 | 0–127 | continuous | ||
/opsix/op6_lvl |
107 | 0–127 | continuous | ||
/opsix/op1_ratio |
108 | 0–127 | continuous | ||
/opsix/op2_ratio |
109 | 0–127 | continuous | ||
/opsix/op3_ratio |
110 | 0–127 | continuous | ||
/opsix/op4_ratio |
111 | 0–127 | continuous | ||
/opsix/op5_ratio |
112 | 0–127 | continuous | ||
/opsix/op6_ratio |
113 | 0–127 | continuous | ||
/opsix/attack |
73 | 0–127 | continuous | ||
/opsix/decay_release |
79 | 0–127 | continuous | ||
/opsix/filter_cutofff |
74 | 0–127 | continuous | ||
/opsix/resonance |
71 | 0–127 | continuous | ||
/opsix/fx1 |
81 | 0–127 | continuous | ||
/opsix/fx2 |
82 | 0–127 | continuous | ||
/opsix/fx3 |
83 | 0–127 | continuous | ||
/opsix/uni_cc12 |
12 | 0–127 | continuous | ||
/opsix/uni_cc13 |
13 | 0–127 | continuous | ||
/opsix/uni_cc14 |
14 | 0–127 | continuous | ||
/opsix/uni_cc15 |
15 | 0–127 | continuous | ||
/opsix/uni_cc16 |
16 | 0–127 | continuous | ||
/opsix/bip_cc17 |
17 | 0–127 | continuous | ||
/opsix/bip_cc18 |
18 | 0–127 | continuous | ||
/opsix/bip_cc19 |
19 | 0–127 | continuous | ||
/opsix/bip_cc20 |
20 | 0–127 | continuous | ||
/opsix/bip_cc21 |
21 | 0–127 | continuous | ||
/opsix/modwheel |
1 | 0–127 | continuous | ||
/opsix/gldetime |
5 | 0–127 | continuous | ||
/opsix/volume |
7 | 0–127 | continuous | ||
/opsix/pan |
10 | 0–127 | continuous | ||
/opsix/expression |
11 | 0–127 | continuous | ||
/opsix/damper |
64 | 0–127 | continuous | ||
/opsix/glide_mode |
65 | 0–127 | continuous | ||
/opsix/sostenuto |
66 | 0–127 | continuous | ||
/opsix/soft |
67 | 0–127 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /opsix/note/on <note> <velocity>, /opsix/cc/<number> <value>, /opsix/pitchbend <0-16383>, /opsix/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.