Native Instruments Reaktor - MF MIDI CC chart, NRPN and OSC map¶
The Native Instruments Reaktor - MF MIDI implementation: 38 CC, each named, for Claude (MCP), SuperCollider or any OSC app.
| Device | Native Instruments Reaktor - MF |
|---|---|
| Vendor | Native Instruments |
| OSC prefix | /reaktor_mf |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per Electra preset |
| Upstream | electra-preset |
| Driver file | devices/native-instruments/reaktor_mf.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/native-instruments/reaktor_mf.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 reaktor_mf: ask “what can the Native Instruments Reaktor - MF do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (38)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/reaktor_mf/filter_on_off |
1 | 0–127 | continuous | ||
/reaktor_mf/cutoff |
2 | 0–127 | continuous | ||
/reaktor_mf/resonance |
3 | 0–127 | continuous | ||
/reaktor_mf/lp_hp |
4 | 0–127 | continuous | ||
/reaktor_mf/mix |
5 | 0–127 | continuous | ||
/reaktor_mf/dist_on_off |
7 | 0–127 | continuous | ||
/reaktor_mf/mix |
8 | 0–127 | continuous | ||
/reaktor_mf/overdrive |
9 | 0–127 | continuous | ||
/reaktor_mf/low |
11 | 0–127 | continuous | ||
/reaktor_mf/hi |
10 | 0–127 | continuous | ||
/reaktor_mf/spin_on_off |
12 | 0–127 | continuous | ||
/reaktor_mf/delay_1_time |
14 | 0–127 | continuous | ||
/reaktor_mf/delay_1_fine |
16 | 0–127 | continuous | ||
/reaktor_mf/delay_2_time |
15 | 0–127 | continuous | ||
/reaktor_mf/delay_feedback |
17 | -100–100 | continuous | ||
/reaktor_mf/t2_t1_link |
18 | 0–127 | continuous | ||
/reaktor_mf/reverb_on_off |
20 | 0–127 | continuous | ||
/reaktor_mf/size_time |
22 | 0–127 | continuous | ||
/reaktor_mf/mix |
21 | 0–127 | continuous | ||
/reaktor_mf/reso_on_off |
24 | 0–127 | continuous | ||
/reaktor_mf/preset |
33 | 0–127 | continuous | ||
/reaktor_mf/mix |
25 | 0–127 | continuous | ||
/reaktor_mf/feedback |
26 | 0–127 | continuous | ||
/reaktor_mf/feedback |
28 | -100–100 | continuous | ||
/reaktor_mf/pitch |
29 | -24–24 | continuous | ||
/reaktor_mf/fine |
30 | 0–100 | continuous | ||
/reaktor_mf/mod |
34 | 0–127 | continuous | ||
/reaktor_mf/filter_cutoff |
35 | 0–127 | continuous | ||
/reaktor_mf/filter_reso |
36 | 0–127 | continuous | ||
/reaktor_mf/dist_mix |
37 | 0–127 | continuous | ||
/reaktor_mf/dist_drive |
38 | 0–127 | continuous | ||
/reaktor_mf/reso_mix |
39 | 0–127 | continuous | ||
/reaktor_mf/reso_fb |
40 | 0–127 | continuous | ||
/reaktor_mf/spin_t1 |
41 | 0–127 | continuous | ||
/reaktor_mf/spin_t2 |
42 | 0–127 | continuous | ||
/reaktor_mf/spin_fine |
43 | 0–127 | continuous | ||
/reaktor_mf/spin_fb |
44 | 0–127 | continuous | ||
/reaktor_mf/reverb_mix |
45 | 0–127 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /reaktor_mf/note/on <note> <velocity>, /reaktor_mf/cc/<number> <value>, /reaktor_mf/pitchbend <0-16383>, /reaktor_mf/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.
Frequently asked questions¶
Which MIDI CC controls the filter cutoff on the Native Instruments Reaktor - MF?
CC 2 (0–127), named /reaktor_mf/cutoff in SynthHub's map.
How many parameters of the Native Instruments Reaktor - MF can be controlled over MIDI?
SynthHub's map of the Native Instruments Reaktor - MF lists 38 MIDI CC parameters, each with its number, range and a readable name; the full chart is on this page.
Can an AI agent like Claude control the Native Instruments Reaktor - MF?
Yes: SynthHub's hosted MCP server knows the Native Instruments Reaktor - MF's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.