devices/waldorf/xt.electra-thomas-moravansky-sysex.fw-unknown.jsonEdit on GitHubJSONWaldorf XT (per Electra preset) MIDI CC chart, NRPN and OSC map
The Waldorf XT MIDI implementation: 9 SysEx commands, each named, for Claude (MCP), SuperCollider or any OSC app.
- sourceElectra One preset
- real unitnot yet checked
Not checked on a real Waldorf XT yet. Own one? Load a sound or send a control, and tell us whether it worked.
- Maker
- Waldorf
- Version
- per Electra preset
- Source
- Electra One preset
- OSC prefix
/xt
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/waldorf/xt.electra-thomas-moravansky-sysex.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 xt: ask “what can the Waldorf XT do?” and it reads this map with list_routes. See the MCP guide.
MIDI controls
9 controls, each with its number, its range and the name to send
SysEx commands
| Command | Arguments | Name to send |
|---|---|---|
| Octave | val: u7 | /xt/octave |
| Semitone | val: u7 | /xt/semitone |
| Detune | val: u7 | /xt/detune |
| Pb range | val: u7 | /xt/pb_range |
| Keytrack | val: u7 | /xt/keytrack |
| Fm amount | val: u7 | /xt/fm_amount |
| Source | val: u7 | /xt/source |
| Amount | val: u7 | /xt/amount |
| Dest | val: u7 | /xt/dest |
Performance MIDI
Notes, pitch bend and any CC are also available: /xt/note/on <note> <velocity>, /xt/cc/<number> <value>, /xt/pitchbend <0-16383>, /xt/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 Waldorf XT is mapped in 3 versions. per Electra preset, per Electra preset.
Frequently asked questions
Can an AI agent like Claude control the Waldorf XT?
Yes: SynthHub's hosted MCP server knows the Waldorf XT's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.