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Waldorf microQ Arp: MIDI CC, NRPN and OSC map

The Waldorf microQ Arp as named OSC addresses — 31 SysEx commands — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Waldorf microQ Arp
Vendor Waldorf
OSC prefix /microq_arp
Source 🎛️ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/waldorf/microq_arp.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 — 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/waldorf/microq_arp.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /microq_arp/arp_mode

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as microq_arp: ask “what can the Waldorf microQ Arp do?” and it reads this map with list_routes. See the MCP guide.

SysEx commands (31)

OSC address Arguments
/microq_arp/arp_mode val: u7
/microq_arp/pattern_length val: u7
/microq_arp/octave_range val: u7
/microq_arp/max_notes val: u7
/microq_arp/shuffle val: u7
/microq_arp/clock val: u7
/microq_arp/pattern val: u7
/microq_arp/pattern_reset val: u7
/microq_arp/sort_order val: u7
/microq_arp/note_length val: u7
/microq_arp/note_overlap val: u7
/microq_arp/direction val: u7
/microq_arp/1 val: u7
/microq_arp/2 val: u7
/microq_arp/3 val: u7
/microq_arp/4 val: u7
/microq_arp/5 val: u7
/microq_arp/6 val: u7
/microq_arp/7 val: u7
/microq_arp/8 val: u7
/microq_arp/9 val: u7
/microq_arp/10 val: u7
/microq_arp/11 val: u7
/microq_arp/12 val: u7
/microq_arp/13 val: u7
/microq_arp/14 val: u7
/microq_arp/15 val: u7
/microq_arp/16 val: u7
/microq_arp/velocity_mode val: u7
/microq_arp/tempo val: u7
/microq_arp/arp_send val: u7

Performance MIDI

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