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Dreadbox Murmux V3 Adept Edition MIDI CC chart, NRPN and OSC map

The Dreadbox Murmux V3 Adept Edition MIDI implementation: 53 CC, each named, for Claude (MCP), SuperCollider or any OSC app.

Device Dreadbox Murmux V3 Adept Edition
Vendor Dreadbox
OSC prefix /murmux_v3_adept_edition
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/dreadbox/murmux_v3_adept_edition.pencilresearch.fw-unknown.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/dreadbox/murmux_v3_adept_edition.pencilresearch.fw-unknown.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /murmux_v3_adept_edition/performance/mod_wheel 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as murmux_v3_adept_edition: ask β€œwhat can the Dreadbox Murmux V3 Adept Edition do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (53)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/murmux_v3_adept_edition/performance/mod_wheel 1 0–127 continuous Performance
/murmux_v3_adept_edition/performance/master_spread 8 0–127 continuous Performance
/murmux_v3_adept_edition/performance/modulation_source 25 0–127 continuous Performance
/murmux_v3_adept_edition/performance/play_mode 26 0–127 continuous Performance
/murmux_v3_adept_edition/performance/amplifier_velocity 31 0–127 continuous Performance
/murmux_v3_adept_edition/performance/sustain_pedal 64 0–127 continuous Performance
/murmux_v3_adept_edition/performance/legato 68 0–127 continuous Performance
/murmux_v3_adept_edition/oscillators/oscillator_glide 5 0–127 continuous Oscillators
/murmux_v3_adept_edition/oscillators/oscillator_1_wave 75 0–127 continuous Oscillators
/murmux_v3_adept_edition/oscillators/oscillator_2_wave 76 0–127 continuous Oscillators
/murmux_v3_adept_edition/oscillators/oscillator_1_tune 77 0–127 continuous Oscillators
/murmux_v3_adept_edition/oscillators/oscillator_2_tune 78 0–127 continuous Oscillators
/murmux_v3_adept_edition/oscillators/oscillator_detune 79 0–127 continuous Oscillators
/murmux_v3_adept_edition/oscillators/oscillator_1_modulation 15 0–127 continuous Oscillators
/murmux_v3_adept_edition/oscillators/oscillator_2_modulation 16 0–127 continuous Oscillators
/murmux_v3_adept_edition/oscillators/oscillator_mix 70 0–127 continuous Oscillators
/murmux_v3_adept_edition/oscillators/oscillator_sync 89 0–127 continuous Oscillators
/murmux_v3_adept_edition/oscillators/noise_mix 96 0–127 continuous Oscillators
/murmux_v3_adept_edition/filter/cutoff 74 0–127 continuous Filter
/murmux_v3_adept_edition/filter/resonance 71 0–127 continuous Filter
/murmux_v3_adept_edition/filter/envelope_amount 3 0–127 continuous Filter
/murmux_v3_adept_edition/filter/lfo_amount 4 0–127 continuous Filter
/murmux_v3_adept_edition/filter/frequency_modulation 2 0–127 continuous Filter
/murmux_v3_adept_edition/filter/tracking 81 0–127 continuous Filter
/murmux_v3_adept_edition/filter/bass 17 0–127 continuous Filter
/murmux_v3_adept_edition/envelope/attack 11 0–127 continuous Envelope
/murmux_v3_adept_edition/envelope/decay 12 0–127 continuous Envelope
/murmux_v3_adept_edition/envelope/sustain 13 0–127 continuous Envelope
/murmux_v3_adept_edition/envelope/release 14 0–127 continuous Envelope
/murmux_v3_adept_edition/amplifier_envelope/attack 73 0–127 continuous Amplifier envelope
/murmux_v3_adept_edition/amplifier_envelope/decay 6 0–127 continuous Amplifier envelope
/murmux_v3_adept_edition/amplifier_envelope/sustain 9 0–127 continuous Amplifier envelope
/murmux_v3_adept_edition/amplifier_envelope/release 72 0–127 continuous Amplifier envelope
/murmux_v3_adept_edition/amplifier/level 7 0–127 continuous Amplifier
/murmux_v3_adept_edition/amplifier/drive 28 0–127 continuous Amplifier
/murmux_v3_adept_edition/polyphonic_lfo/rate 19 0–127 continuous Polyphonic LFO
/murmux_v3_adept_edition/polyphonic_lfo/wave 21 0–127 continuous Polyphonic LFO
/murmux_v3_adept_edition/polyphonic_lfo/sync 29 0–127 continuous Polyphonic LFO
/murmux_v3_adept_edition/polyphonic_lfo/fade 18 0–127 continuous Polyphonic LFO
/murmux_v3_adept_edition/polyphonic_lfo/spread 20 0–127 continuous Polyphonic LFO
/murmux_v3_adept_edition/lfo_b/rate 22 0–127 continuous LFO B
/murmux_v3_adept_edition/lfo_b/wave 24 0–127 continuous LFO B
/murmux_v3_adept_edition/lfo_b/sync 30 0–127 continuous LFO B
/murmux_v3_adept_edition/lfo_b/amount 23 0–127 continuous LFO B
/murmux_v3_adept_edition/bbd/amount 91 0–127 continuous BBD
/murmux_v3_adept_edition/bbd/morph 92 0–127 continuous BBD
/murmux_v3_adept_edition/bbd/lfo_speed 87 0–127 continuous BBD
/murmux_v3_adept_edition/bbd/lfo_depth 88 0–127 continuous BBD
/murmux_v3_adept_edition/delay/mix 93 0–127 continuous Delay
/murmux_v3_adept_edition/delay/time 94 0–127 continuous Delay
/murmux_v3_adept_edition/delay/feedback 95 0–127 continuous Delay
/murmux_v3_adept_edition/system/all_sound_off 120 0–127 continuous System
/murmux_v3_adept_edition/system/all_noise_off 123 0–127 continuous System

Performance MIDI

Notes, pitch bend and any CC are also available: /murmux_v3_adept_edition/note/on <note> <velocity>, /murmux_v3_adept_edition/cc/<number> <value>, /murmux_v3_adept_edition/pitchbend <0-16383>, /murmux_v3_adept_edition/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 Dreadbox Murmux V3 Adept Edition?

CC 74 (0–127), named /murmux_v3_adept_edition/filter/cutoff in SynthHub's map.

How many parameters of the Dreadbox Murmux V3 Adept Edition can be controlled over MIDI?

SynthHub's map of the Dreadbox Murmux V3 Adept Edition lists 53 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 Dreadbox Murmux V3 Adept Edition?

Yes: SynthHub's hosted MCP server knows the Dreadbox Murmux V3 Adept Edition's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.