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IK Multimedia UNO Synth MIDI CC chart, NRPN and OSC map

The IK Multimedia UNO Synth MIDI implementation: 67 CC, each named, for Claude (MCP), SuperCollider or any OSC app.

Device IK Multimedia UNO Synth
Vendor IK Multimedia
OSC prefix /uno_synth
Source πŸ“¦ Derived from MIDI Guide (community CC/NRPN data)
Firmware unknown
Revision per pencilresearch canonical CSV
Upstream pencilresearch
Data licence CC-BY-SA-4.0 β€” MIDI Guide (https://midi.guide) by Pencil Research and contributors
Driver file devices/ik-multimedia/uno_synth.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/ik-multimedia/uno_synth.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /uno_synth/mod_wheel/modulation_wheel 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as uno_synth: ask β€œwhat can the IK Multimedia UNO Synth do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (67)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/uno_synth/mod_wheel/modulation_wheel 1 0–127 continuous Mod wheel
/uno_synth/general/glide_time 5 0–127 continuous General
/uno_synth/general/vca_level 7 0–127 continuous General
/uno_synth/general/swing 9 0–127 continuous General
/uno_synth/general/sustain_hold 64 0–127 continuous General
/uno_synth/general/glide_on_off 65 0–127 continuous General
/uno_synth/general/vibrato_on_off 77 0–127 continuous General
/uno_synth/general/wah_on_off 78 0–127 continuous General
/uno_synth/general/tremolo_on_off 79 0–127 continuous General
/uno_synth/general/dive_on_off 89 0–127 continuous General
/uno_synth/general/dive_range 90 0–127 continuous General
/uno_synth/general/scoop_on_off 91 0–127 continuous General
/uno_synth/general/scoop_range 92 0–127 continuous General
/uno_synth/mod_wheel/to_lfo_rate 93 0–127 continuous Mod wheel
/uno_synth/mod_wheel/to_vibrato 94 0–127 continuous Mod wheel
/uno_synth/mod_wheel/to_wah 95 0–127 continuous Mod wheel
/uno_synth/mod_wheel/to_tremelo 96 0–127 continuous Mod wheel
/uno_synth/mod_wheel/to_filter_cutoff 97 0–127 continuous Mod wheel
/uno_synth/general/pitch_bend_range 101 0–127 continuous General
/uno_synth/velocity_destination/velocity_to_vca_amount 102 0–127 continuous Velocity destination
/uno_synth/velocity_destination/velocity_to_filter_cutoff 103 0–127 continuous Velocity destination
/uno_synth/velocity_destination/velocity_to_filter_env_amount 104 0–127 continuous Velocity destination
/uno_synth/velocity_destination/velocity_to_lfo_rate 105 0–127 continuous Velocity destination
/uno_synth/general/filter_cutoff_keytrack 106 0–127 continuous General
/uno_synth/delay/mix 80 0–127 continuous Delay
/uno_synth/delay/time 81 0–127 continuous Delay
/uno_synth/oscillators_and_amp/osc_1_level 12 0–127 continuous Oscillators and amp
/uno_synth/oscillators_and_amp/osc_2_level 13 0–127 continuous Oscillators and amp
/uno_synth/oscillators_and_amp/noise_level 14 0–127 continuous Oscillators and amp
/uno_synth/oscillators_and_amp/osc_1_wave 15 0–127 continuous Oscillators and amp
/uno_synth/oscillators_and_amp/osc_2_wave 16 0–127 continuous Oscillators and amp
/uno_synth/oscillators_and_amp/osc_1_tune 17 0–127 continuous Oscillators and amp
/uno_synth/oscillators_and_amp/osc_2_tune 18 0–127 continuous Oscillators and amp
/uno_synth/oscillators_and_amp/amp_attack 24 0–127 continuous Oscillators and amp
/uno_synth/oscillators_and_amp/amp_decay 25 0–127 continuous Oscillators and amp
/uno_synth/oscillators_and_amp/amp_sustain 26 0–127 continuous Oscillators and amp
/uno_synth/oscillators_and_amp/amp_release 27 0–127 continuous Oscillators and amp
/uno_synth/filter/mode 19 0–127 continuous Filter
/uno_synth/filter/cutoff 20 0–127 continuous Filter
/uno_synth/filter/resonance 21 0–127 continuous Filter
/uno_synth/filter/drive 22 0–127 continuous Filter
/uno_synth/filter/env_amount 23 0–127 continuous Filter
/uno_synth/filter/attack 44 0–127 continuous Filter
/uno_synth/filter/decay 45 0–127 continuous Filter
/uno_synth/filter/sustain 46 0–127 continuous Filter
/uno_synth/filter/release 47 0–127 continuous Filter
/uno_synth/filter/env_to_osc_1_pwm 48 0–127 continuous Filter
/uno_synth/filter/env_to_osc_2_pwm 49 0–127 continuous Filter
/uno_synth/filter/env_to_osc_1_wave 50 0–127 continuous Filter
/uno_synth/filter/env_to_osc_2_wave 51 0–127 continuous Filter
/uno_synth/lfo/wave 66 0–127 continuous LFO
/uno_synth/lfo/rate 67 0–127 continuous LFO
/uno_synth/lfo/to_pitch 68 0–127 continuous LFO
/uno_synth/lfo/to_filter_cutoff 69 0–127 continuous LFO
/uno_synth/lfo/to_tremelo 70 0–127 continuous LFO
/uno_synth/lfo/to_wah 71 0–127 continuous LFO
/uno_synth/lfo/to_vibr 72 0–127 continuous LFO
/uno_synth/lfo/to_osc_1_pwm 73 0–127 continuous LFO
/uno_synth/lfo/to_osc_2_pwm 74 0–127 continuous LFO
/uno_synth/lfo/to_osc_1_waveform 75 0–127 continuous LFO
/uno_synth/lfo/to_osc_2_waveform 76 0–127 continuous LFO
/uno_synth/arpeggiator_and_sequencer/arpeggiator_on_off 82 0–127 continuous Arpeggiator and sequencer
/uno_synth/arpeggiator_and_sequencer/arpeggiator_direction 83 0–127 continuous Arpeggiator and sequencer
/uno_synth/arpeggiator_and_sequencer/arpeggiator_range 84 0–127 continuous Arpeggiator and sequencer
/uno_synth/arpeggiator_and_sequencer/arpeggiator_and_seq_gate_time 85 0–127 continuous Arpeggiator and sequencer
/uno_synth/arpeggiator_and_sequencer/seq_direction 86 0–127 continuous Arpeggiator and sequencer
/uno_synth/arpeggiator_and_sequencer/seq_range 87 0–127 continuous Arpeggiator and sequencer

Performance MIDI

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

Limitations

CC/NRPN only. SysEx (preset management, display control, bulk dump/load, vendor-proprietary opcodes) is NOT covered by pencilresearch. To extend this device with SysEx, sniff the vendor editor, add `sysex.header/footer` + `commands` blocks, and use `update_device.md` PR template.

Frequently asked questions

Which MIDI CC controls the filter cutoff on the IK Multimedia UNO Synth?

CC 97 (0–127), named /uno_synth/mod_wheel/to_filter_cutoff in SynthHub's map.

How many parameters of the IK Multimedia UNO Synth can be controlled over MIDI?

SynthHub's map of the IK Multimedia UNO Synth lists 67 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 IK Multimedia UNO Synth?

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