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Roland JUNO 106 1.73 MIDI CC chart, NRPN and OSC map

The Roland JUNO 106 1.73 MIDI implementation: 24 SysEx commands, each named, for Claude (MCP), SuperCollider or any OSC app.

Device Roland JUNO 106 1.73
Vendor Roland
OSC prefix /juno_106_1_73
Source πŸŽ›οΈ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/roland/juno_106_1_73.json
Not tested on the device yet

This driver comes from documentation or community data and has not been checked on real hardware. If you own one, a quick test and a pull request promoting it helps everyone β€” see CONTRIBUTING.

How do you control 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_1_73.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /juno_106_1_73/lfo/rate

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as juno_106_1_73: ask β€œwhat can the Roland JUNO 106 1.73 do?” and it reads this map with list_routes. See the MCP guide.

SysEx commands (24)

OSC address Arguments
/juno_106_1_73/lfo/rate val: u7
/juno_106_1_73/dco/range val: u7
/juno_106_1_73/dco/lfo val: u7
/juno_106_1_73/dco/pwm_mode val: u7
/juno_106_1_73/dco/sub val: u7
/juno_106_1_73/dco/noise val: u7
/juno_106_1_73/lfo/delay_time val: u7
/juno_106_1_73/dco/pwm val: u7
/juno_106_1_73/dco/pwm_wave val: u7
/juno_106_1_73/hpf val: u7
/juno_106_1_73/vcf/freq val: u7
/juno_106_1_73/vcf/env_mode val: u7
/juno_106_1_73/vcf/env val: u7
/juno_106_1_73/vcf/lfo val: u7
/juno_106_1_73/vcf/kybd val: u7
/juno_106_1_73/vcf/res val: u7
/juno_106_1_73/hidden val: u7
/juno_106_1_73/vca/level val: u7
/juno_106_1_73/env/attack val: u7
/juno_106_1_73/env/decay val: u7
/juno_106_1_73/env/sustain val: u7
/juno_106_1_73/env/release val: u7
/juno_106_1_73/chorus/chorus_type val: u7
/juno_106_1_73/vca/vca_mode val: u7

Performance MIDI

Notes, pitch bend and any CC are also available: /juno_106_1_73/note/on <note> <velocity>, /juno_106_1_73/cc/<number> <value>, /juno_106_1_73/pitchbend <0-16383>, /juno_106_1_73/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.

Frequently asked questions

Can an AI agent like Claude control the Roland JUNO 106 1.73?

Yes: SynthHub's hosted MCP server knows the Roland JUNO 106 1.73's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.