Expressive E Osmose: MIDI CC, NRPN and OSC map¶
The Expressive E Osmose as named OSC addresses — 20 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Expressive E Osmose |
|---|---|
| Vendor | Expressive E |
| OSC prefix | /osmose |
| 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/expressive-e/osmose.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/expressive-e/osmose.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 osmose: ask “what can the Expressive E Osmose do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (20)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/osmose/macros/macro_1 |
12 | 0–127 | continuous | Macros | |
/osmose/macros/macro_2 |
13 | 0–127 | continuous | Macros | |
/osmose/macros/macro_3 |
14 | 0–127 | continuous | Macros | |
/osmose/macros/macro_4 |
15 | 0–127 | continuous | Macros | |
/osmose/macros/macro_5 |
16 | 0–127 | continuous | Macros | |
/osmose/macros/macro_6 |
17 | 0–127 | continuous | Macros | |
/osmose/global_fx/parameter_1 |
20 | 0–127 | continuous | Global FX | |
/osmose/global_fx/parameter_2 |
21 | 0–127 | continuous | Global FX | |
/osmose/global_fx/parameter_3 |
22 | 0–127 | continuous | Global FX | |
/osmose/global_fx/parameter_4 |
23 | 0–127 | continuous | Global FX | |
/osmose/global_fx/mix |
24 | 0–127 | continuous | Global FX | |
/osmose/general/postgain |
18 | 0–127 | continuous | General | |
/osmose/general/pregain |
26 | 0–127 | continuous | General | |
/osmose/general/sustain |
64 | 0–127 | momentary | General | |
/osmose/general/sostenuto_1 |
66 | 0–127 | momentary | General | |
/osmose/general/sostenuto_2 |
69 | 0–127 | momentary | General | |
/osmose/general/eq_tilt_value |
83 | 0–127 | continuous | General | |
/osmose/general/eq_frequency |
84 | 0–127 | continuous | General | |
/osmose/general/eq_mix |
85 | 0–127 | continuous | General | |
/osmose/general/compressor_mix |
93 | 0–127 | continuous | General |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /osmose/note/on <note> <velocity>, /osmose/cc/<number> <value>, /osmose/pitchbend <0-16383>, /osmose/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.