devices/akai/s2000.vendor.fw-1.30.jsonEdit on GitHubJSONAkai S2000 MIDI CC chart, NRPN and OSC map
The Akai S2000 MIDI implementation: 7 CC, each named, for Claude (MCP), SuperCollider or any OSC app.
- sourcemaker's documentation
- firmware1.30
- real unitnot yet checked
Not checked on a real Akai S2000 yet. Own one? Load a sound or send a control, and tell us whether it worked.
- Maker
- Akai
- Version
- S2000 software version 1.30 (MIDI Implementation Chart DEC.1995)
- Source
- maker's documentation
- OSC prefix
/s2000
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/akai/s2000.vendor.fw-1.30.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 s2000: ask “what can the Akai S2000 do?” and it reads this map with list_routes. See the MCP guide.
MIDI controls
7 controls, each with its number, its range and the name to send
Controllers
| Control | CC | Range | Name to send |
|---|---|---|---|
| Modulation | 1 | 0–127 | /s2000/modulation |
| Breath | 2 | 0–127 | /s2000/breath |
| Foot | 4 | 0–127 | /s2000/foot |
| Volume | 7 | 0–127 | /s2000/volume |
| Sustain | 64 | switch | /s2000/sustain |
| Soft | 67 | switch | /s2000/soft |
Channel mode
| Control | CC | Range | Name to send |
|---|---|---|---|
| All notes off | 123 | trigger | /s2000/all_notes_off |
Performance MIDI
Notes, pitch bend and any CC are also available: /s2000/note/on <note> <velocity>, /s2000/cc/<number> <value>, /s2000/pitchbend <0-16383>, /s2000/program_change <n>.
Limitations
Source: S2000 manual v1.30 chart and the S2000 SysEx extensions. Notes 21-127 (4-127 true voices), Note On and release velocity, channel pressure, pitch bend (0-24 semitone steps). Program Change 1-128 picks the program by its preset number; in Multi mode the Program Change's MIDI channel names the multi part (1-16) that receives it, whatever channel that part listens on. SysEx (Akai 47H, S2000 48H): the extensions document gives Request/Receive Multi Data (41H/42H, nibbled data) but builds on the S3000 SysEx set it does not include and leaves byte order and sizes open, so no SysEx route is mapped. Untested on hardware.
Frequently asked questions
How many parameters of the Akai S2000 can be controlled over MIDI?
SynthHub's map of the Akai S2000 lists 7 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 Akai S2000?
Yes: SynthHub's hosted MCP server knows the Akai S2000's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.