devices/casio/vz.electra-community-vx.fw-unknown.jsonEdit on GitHubJSONCasio VZ (per Electra preset) MIDI CC chart, NRPN and OSC map
The Casio VZ MIDI implementation: 9 CC, 2 SysEx commands, each named, for Claude (MCP), SuperCollider or any OSC app.
- sourceElectra One preset
- real unitnot yet checked
Not checked on a real Casio VZ yet. Own one? Load a sound or send a control, and tell us whether it worked.
- Maker
- Casio
- Version
- per Electra preset
- Source
- Electra One preset
- OSC prefix
/vz
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/casio/vz.electra-community-vx.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 vz: ask “what can the Casio VZ do?” and it reads this map with list_routes. See the MCP guide.
MIDI controls
11 controls, each with its number, its range and the name to send
| Control | CC | Range | Name to send |
|---|---|---|---|
| Sustain | 64 | 0–127 | /vz/sustain |
| Mod wheel | 1 | 0–127 | /vz/mod_wheel |
| Def control | 12 | 0–127 | /vz/def_control |
| Expr pedal | 4 | 0–127 | /vz/expr_pedal |
| Master volume | 7 | 0–127 | /vz/master_volume |
| Porta time | 5 | 0–99 | /vz/porta_time |
| Portamento | 65 | 0–127 | /vz/portamento |
| Pan | 10 | -63–64 | /vz/pan |
| Adsr mode | 23 | 0–127 | /vz/adsr_mode |
SysEx commands
| Command | Arguments | Name to send |
|---|---|---|
| Performance | val: u7 | /vz/performance |
| Bend range | val: u7 | /vz/bend_range |
Performance MIDI
Notes, pitch bend and any CC are also available: /vz/note/on <note> <velocity>, /vz/cc/<number> <value>, /vz/pitchbend <0-16383>, /vz/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 Casio VZ is mapped in 2 versions. per Electra preset.
Frequently asked questions
How many parameters of the Casio VZ can be controlled over MIDI?
SynthHub's map of the Casio VZ lists 9 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 Casio VZ?
Yes: SynthHub's hosted MCP server knows the Casio VZ's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.