MFB 301 Pro: MIDI CC, NRPN and OSC map¶
The MFB 301 Pro as named OSC addresses — 23 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | MFB 301 Pro |
|---|---|
| Vendor | MFB |
| OSC prefix | /301_pro |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per Electra preset |
| Upstream | electra-preset |
| Driver file | devices/mfb/301_pro.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/mfb/301_pro.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 301_pro: ask “what can the MFB 301 Pro do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (23)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/301_pro/attack |
2 | 0–127 | continuous | ||
/301_pro/attack |
79 | 0–127 | continuous | ||
/301_pro/attack |
82 | 0–127 | continuous | ||
/301_pro/tune |
3 | 0–127 | continuous | ||
/301_pro/decay |
64 | 0–127 | continuous | ||
/301_pro/tune |
19 | 0–127 | continuous | ||
/301_pro/decay |
20 | 0–127 | continuous | ||
/301_pro/tune |
21 | 0–127 | continuous | ||
/301_pro/decay |
78 | 0–127 | continuous | ||
/301_pro/attack |
53 | 0–127 | continuous | ||
/301_pro/snappy |
13 | 0–127 | continuous | ||
/301_pro/attack |
76 | 0–127 | continuous | ||
/301_pro/tune |
86 | 0–127 | continuous | ||
/301_pro/decay |
87 | 0–127 | continuous | ||
/301_pro/tune |
11 | 0–127 | continuous | ||
/301_pro/decay |
67 | 0–127 | continuous | ||
/301_pro/decay |
75 | 0–127 | continuous | ||
/301_pro/mix |
88 | 0–127 | continuous | ||
/301_pro/mix |
93 | 0–127 | continuous | ||
/301_pro/tune |
84 | 0–127 | continuous | ||
/301_pro/decay |
85 | 0–127 | continuous | ||
/301_pro/tune |
89 | 0–127 | continuous | ||
/301_pro/decay |
90 | 0–127 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /301_pro/note/on <note> <velocity>, /301_pro/cc/<number> <value>, /301_pro/pitchbend <0-16383>, /301_pro/program_change <n>.
Limitations¶
Imported from an Electra One community preset. The mapping reflects the preset author's editorial choices: parameter naming, ranges, and which params are exposed. Untested on hardware in this repo.