Elektron Octatrack: MIDI CC, NRPN and OSC map¶
The Elektron Octatrack as named OSC addresses — 32 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Elektron Octatrack |
|---|---|
| Vendor | Elektron |
| OSC prefix | /octatrack |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per Electra preset |
| Upstream | electra-preset |
| Driver file | devices/elektron/octatrack.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: octatrack.pencilresearch.fw-unknown.
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/elektron/octatrack.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 octatrack: ask “what can the Elektron Octatrack do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (32)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/octatrack/track_level |
7 | 0–127 | continuous | ||
/octatrack/track_balance |
8 | -64–63 | continuous | ||
/octatrack/filter_width |
35 | 0–127 | continuous | ||
/octatrack/delay_send |
39 | 0–127 | continuous | ||
/octatrack/track_cue |
51 | 0–127 | continuous | ||
/octatrack/track_mute |
49 | 0–127 | continuous | ||
/octatrack/fx1_1 |
34 | 0–127 | continuous | ||
/octatrack/fx1_3 |
36 | 0–127 | continuous | ||
/octatrack/fx1_4 |
37 | 0–127 | continuous | ||
/octatrack/fx1_5 |
38 | 0–127 | continuous | ||
/octatrack/fx2_1 |
40 | 0–127 | continuous | ||
/octatrack/fx2_2 |
41 | 0–127 | continuous | ||
/octatrack/fx2_3 |
42 | 0–127 | continuous | ||
/octatrack/fx2_4 |
43 | 0–127 | continuous | ||
/octatrack/fx2_5 |
44 | 0–127 | continuous | ||
/octatrack/fx2_6 |
45 | 0–127 | continuous | ||
/octatrack/spd_1 |
28 | 0–127 | continuous | ||
/octatrack/dep_1 |
31 | 0–127 | continuous | ||
/octatrack/spd_2 |
29 | 0–127 | continuous | ||
/octatrack/dep_2 |
32 | 0–127 | continuous | ||
/octatrack/spd_3 |
30 | 0–127 | continuous | ||
/octatrack/dep_3 |
33 | 0–127 | continuous | ||
/octatrack/adr |
22 | 0–127 | continuous | ||
/octatrack/adr |
23 | 0–127 | continuous | ||
/octatrack/adr |
24 | 0–127 | continuous | ||
/octatrack/adr |
60 | 0–127 | continuous | ||
/octatrack/pitch |
16 | -63–64 | continuous | ||
/octatrack/start |
17 | 0–127 | continuous | ||
/octatrack/len |
18 | 0–127 | continuous | ||
/octatrack/scene_a |
55 | 0–127 | continuous | ||
/octatrack/scene_b |
56 | 0–127 | continuous | ||
/octatrack/x_fader |
48 | -64–63 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /octatrack/note/on <note> <velocity>, /octatrack/cc/<number> <value>, /octatrack/pitchbend <0-16383>, /octatrack/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.