devices/akai/vx90.electra-bohdan.fw-tauntek.jsonEdit on GitHubJSONAkai VX90 (per Electra preset) MIDI CC chart, NRPN and OSC map
The Akai VX90 MIDI implementation: 37 CC, each named, for Claude (MCP), SuperCollider or any OSC app.
- sourceElectra One preset
- firmwaretauntek
- real unitnot yet checked
Not checked on a real Akai VX90 yet. Own one? Load a sound or send a control, and tell us whether it worked.
- Maker
- Akai
- Version
- per Electra preset
- Source
- Electra One preset
- OSC prefix
/vx90
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/vx90.electra-bohdan.fw-tauntek.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 vx90: ask “what can the Akai VX90 do?” and it reads this map with list_routes. See the MCP guide.
MIDI controls
37 controls, each with its number, its range and the name to send
| Control | CC | Range | Name to send |
|---|---|---|---|
| Octave | 14 | 0–127 | /vx90/octave |
| Pulse width | 16 | 0–127 | /vx90/pulse_width |
| Sampler | 20 | 0–127 | /vx90/sampler |
| A b balance | 21 | 0–127 | /vx90/a_b_balance |
| Chorus | 41 | 0–127 | /vx90/chorus |
| Waveform | 15 | 0–127 | /vx90/waveform |
| Pwm | 17 | 0–127 | /vx90/pwm |
| Vcf eg depth | 18 | 0–127 | /vx90/vcf_eg_depth |
| Noise | 19 | 0–127 | /vx90/noise |
| Uni detune | 44 | 0–127 | /vx90/uni_detune |
| Assign | 42 | 0–127 | /vx90/assign |
| Cutoff | 74 | 0–127 | /vx90/cutoff |
| Eg | 27 | 0–127 | /vx90/eg |
| Vcf eg depth | 23 | -63–63 | /vx90/vcf_eg_depth |
| Vco fm | 22 | 0–127 | /vx90/vco_fm |
| Destination | 36 | 0–127 | /vx90/destination |
| Waveform | 37 | 0–127 | /vx90/waveform |
| Resonance | 71 | 0–127 | /vx90/resonance |
| Key follow | 24 | 0–127 | /vx90/key_follow |
| Velocity | 25 | -63–63 | /vx90/velocity |
| Hpf | 26 | 0–127 | /vx90/hpf |
| Rate | 38 | 0–127 | /vx90/rate |
| Depth | 39 | 0–127 | /vx90/depth |
| Attack | 30 | 0–127 | /vx90/attack |
| Attack | 31 | 0–127 | /vx90/attack |
| Attack | 32 | 0–127 | /vx90/attack |
| Attack | 33 | 0–127 | /vx90/attack |
| Vx edit mode | 75 | 0–127 | /vx90/vx_edit_mode |
| Delay | 40 | 0–127 | /vx90/delay |
| Attack | 73 | 0–127 | /vx90/attack |
| Attack | 72 | 0–127 | /vx90/attack |
| Velocity | 35 | -63–63 | /vx90/velocity |
| Vca level | 34 | 0–127 | /vx90/vca_level |
| Pb vco | 45 | 0–127 | /vx90/pb_vco |
| Pb vcf | 46 | 0–127 | /vx90/pb_vcf |
| Mod wheel | 47 | 0–127 | /vx90/mod_wheel |
| Sol port | 43 | 0–127 | /vx90/sol_port |
Performance MIDI
Notes, pitch bend and any CC are also available: /vx90/note/on <note> <velocity>, /vx90/cc/<number> <value>, /vx90/pitchbend <0-16383>, /vx90/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 Akai VX90 is mapped in 2 versions. per Electra preset.
Frequently asked questions
Which MIDI CC controls the filter cutoff on the Akai VX90?
CC 74 (0–127), named /vx90/cutoff in SynthHub's map.
How many parameters of the Akai VX90 can be controlled over MIDI?
SynthHub's map of the Akai VX90 lists 37 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 VX90?
Yes: SynthHub's hosted MCP server knows the Akai VX90's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.