devices/torso/s_4.electra-rolandpeer-in-progress.fw-unknown.jsonEdit on GitHubJSONTorso S-4 (per Electra preset) MIDI CC chart, NRPN and OSC map
The Torso S-4 MIDI implementation: 44 CC, each named, for Claude (MCP), SuperCollider or any OSC app.
- sourceElectra One preset
- real unitnot yet checked
Not checked on a real Torso S-4 yet. Own one? Load a sound or send a control, and tell us whether it worked.
- Maker
- Torso
- Version
- per Electra preset
- Source
- Electra One preset
- OSC prefix
/s_4
Use 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/torso/s_4.electra-rolandpeer-in-progress.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 s_4: ask “what can the Torso S-4 do?” and it reads this map with list_routes. See the MCP guide.
MIDI controls
44 controls, each with its number, its range and the name to send
| Control | CC | Range | Name to send |
|---|---|---|---|
| Track 1 | 46 | -40–0 | /s_4/track_1 |
| Filter | 50 | -50–50 | /s_4/filter |
| Filter | 51 | -50–50 | /s_4/filter |
| Filter | 52 | -50–50 | /s_4/filter |
| Filter | 53 | -50–50 | /s_4/filter |
| Track 2 | 47 | -40–0 | /s_4/track_2 |
| Track 3 | 48 | -40–0 | /s_4/track_3 |
| Track 4 | 49 | -40–0 | /s_4/track_4 |
| Color | 94 | 0–127 | /s_4/color |
| Color | 95 | 0–127 | /s_4/color |
| Color | 96 | 0–127 | /s_4/color |
| Color | 98 | 0–127 | /s_4/color |
| Color | 94 | 0–127 | /s_4/color |
| Color | 95 | 0–127 | /s_4/color |
| Color | 96 | 0–127 | /s_4/color |
| Color | 98 | 0–127 | /s_4/color |
| Color | 94 | 0–127 | /s_4/color |
| Color | 95 | 0–127 | /s_4/color |
| Color | 96 | 0–127 | /s_4/color |
| Color | 98 | 0–127 | /s_4/color |
| Color | 94 | 0–127 | /s_4/color |
| Color | 95 | 0–127 | /s_4/color |
| Color | 96 | 0–127 | /s_4/color |
| Color | 98 | 0–127 | /s_4/color |
| Space | 112 | 0–127 | /s_4/space |
| Space | 113 | 0–127 | /s_4/space |
| Space | 110 | 0–127 | /s_4/space |
| Space | 114 | 0–127 | /s_4/space |
| Space | 112 | 0–127 | /s_4/space |
| Space | 113 | 0–127 | /s_4/space |
| Space | 110 | 0–127 | /s_4/space |
| Space | 114 | 0–127 | /s_4/space |
| Space | 112 | 0–127 | /s_4/space |
| Space | 113 | 0–127 | /s_4/space |
| Space | 110 | 0–127 | /s_4/space |
| Space | 114 | 0–127 | /s_4/space |
| Space | 112 | 0–127 | /s_4/space |
| Space | 113 | 0–127 | /s_4/space |
| Space | 110 | 0–127 | /s_4/space |
| Space | 114 | 0–127 | /s_4/space |
| Cr co noi ti | 97 | -50–50 | /s_4/cr_co_noi_ti |
| Level | 115 | 0–127 | /s_4/level |
| Xy pad | 111 | 0–127 | /s_4/xy_pad |
| Dial | 116 | -50–50 | /s_4/dial |
Performance MIDI
Notes, pitch bend and any CC are also available: /s_4/note/on <note> <velocity>, /s_4/cc/<number> <value>, /s_4/pitchbend <0-16383>, /s_4/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.
Other versions
The Torso S-4 is mapped in 2 versions. per Electra preset.
Frequently asked questions
Which MIDI CC controls the filter cutoff on the Torso S-4?
CC 50 (-50–50), named /s_4/filter in SynthHub's map.
How many parameters of the Torso S-4 can be controlled over MIDI?
SynthHub's map of the Torso S-4 lists 44 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 Torso S-4?
Yes: SynthHub's hosted MCP server knows the Torso S-4's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.