devices/roland/juno_106.electra-dominic-hawken.fw-kiwi.jsonEdit on GitHubJSONRoland Juno-106 (per Electra preset) MIDI CC chart, NRPN and OSC map
The Roland Juno-106 MIDI implementation: 49 CC, 2 SysEx commands, each named, for Claude (MCP), SuperCollider or any OSC app.
- sourceElectra One preset
- firmwarekiwi
- real unitnot yet checked
Not checked on a real Roland Juno-106 yet. Own one? Load a sound or send a control, and tell us whether it worked.
- Maker
- Roland
- Version
- per Electra preset
- Source
- Electra One preset
- OSC prefix
/juno_106
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/roland/juno_106.electra-dominic-hawken.fw-kiwi.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 juno_106: ask “what can the Roland Juno-106 do?” and it reads this map with list_routes. See the MCP guide.
MIDI controls
51 controls, each with its number, its range and the name to send
| Control | CC | Range | Name to send |
|---|---|---|---|
| Cutoff | 41 | 0–127 | /juno_106/cutoff |
| Resonance | 42 | 0–127 | /juno_106/resonance |
| Keyboard | 43 | 0–127 | /juno_106/keyboard |
| Cutoff | 44 | 0–127 | /juno_106/cutoff |
| Chorus | 57 | 0–127 | /juno_106/chorus |
| Volume | 7 | 0–127 | /juno_106/volume |
| Amount | 47 | 0–127 | /juno_106/amount |
| Source | 48 | 0–127 | /juno_106/source |
| Amount | 45 | 0–127 | /juno_106/amount |
| Source | 46 | 0–127 | /juno_106/source |
| Key mode | 104 | 0–127 | /juno_106/key_mode |
| Porta time | 5 | 0–127 | /juno_106/porta_time |
| Attack | 51 | 0–127 | /juno_106/attack |
| Decay | 52 | 0–127 | /juno_106/decay |
| Sustain | 53 | 0–127 | /juno_106/sustain |
| Release | 54 | 0–127 | /juno_106/release |
| Internal veloc | 107 | 0–127 | /juno_106/internal_veloc |
| Attack | 65 | 0–127 | /juno_106/attack |
| Decay | 66 | 0–127 | /juno_106/decay |
| Sustain | 67 | 0–127 | /juno_106/sustain |
| Release | 68 | 0–127 | /juno_106/release |
| After level | 103 | 0–127 | /juno_106/after_level |
| Wave | 18 | 0–127 | /juno_106/wave |
| Rate | 19 | 0–127 | /juno_106/rate |
| Delay | 20 | 0–127 | /juno_106/delay |
| Mode | 24 | 0–127 | /juno_106/mode |
| Wave | 21 | 0–127 | /juno_106/wave |
| Rate | 22 | 0–127 | /juno_106/rate |
| Delay | 23 | 0–127 | /juno_106/delay |
| Mode | 25 | 0–127 | /juno_106/mode |
| Amount | 105 | 0–127 | /juno_106/amount |
| Range | 8 | 0–127 | /juno_106/range |
| Wave | 9 | 0–127 | /juno_106/wave |
| Amount | 10 | 0–64 | /juno_106/amount |
| Source | 11 | 0–127 | /juno_106/source |
| Sub level | 33 | 0–127 | /juno_106/sub_level |
| Noise level | 34 | 0–127 | /juno_106/noise_level |
| Amount | 14 | 0–127 | /juno_106/amount |
| Source | 15 | 0–127 | /juno_106/source |
| Amount | 12 | 0–127 | /juno_106/amount |
| Trig | 61 | 0–127 | /juno_106/trig |
| Vca lfo src | 60 | 0–127 | /juno_106/vca_lfo_src |
| Vca lfo level | 59 | 0–127 | /juno_106/vca_lfo_level |
| Dco | 69 | 0–127 | /juno_106/dco |
| Vcf | 70 | 0–127 | /juno_106/vcf |
| Dco lfo | 71 | 0–127 | /juno_106/dco_lfo |
| Midi local | 116 | 0–127 | /juno_106/midi_local |
| All notes off | 123 | 0–127 | /juno_106/all_notes_off |
| All sound off | 120 | 0–127 | /juno_106/all_sound_off |
SysEx commands
| Command | Arguments | Name to send |
|---|---|---|
| Modulates | val: u7 | /juno_106/modulates |
| Sysex message | val: u7 | /juno_106/sysex_message |
Performance MIDI
Notes, pitch bend and any CC are also available: /juno_106/note/on <note> <velocity>, /juno_106/cc/<number> <value>, /juno_106/pitchbend <0-16383>, /juno_106/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 Roland Juno-106 is mapped in 3 versions. per Electra preset, per Electra preset.
Frequently asked questions
Which MIDI CC controls the filter cutoff on the Roland Juno-106?
CC 41 (0–127), named /juno_106/cutoff in SynthHub's map.
How many parameters of the Roland Juno-106 can be controlled over MIDI?
SynthHub's map of the Roland Juno-106 lists 49 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 Roland Juno-106?
Yes: SynthHub's hosted MCP server knows the Roland Juno-106's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.