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Moog Subharmonicon: MIDI CC, NRPN and OSC map

The Moog Subharmonicon as named OSC addresses — 11 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Moog Subharmonicon
Vendor Moog
OSC prefix /subharmonicon
Source 📦 Derived from MIDI Guide (community CC/NRPN data)
Firmware unknown
Revision per pencilresearch canonical CSV
Upstream pencilresearch
Data licence CC-BY-SA-4.0 — MIDI Guide (https://midi.guide) by Pencil Research and contributors
Driver file devices/moog/subharmonicon.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/moog/subharmonicon.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /subharmonicon/vco_1/frequency 8191

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

MIDI CC and NRPN parameters (11)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/subharmonicon/vco_1/frequency 4 / 36 0–16383 continuous VCO 1
/subharmonicon/vco_1/sub_1_frequency 103 0–127 continuous VCO 1
/subharmonicon/vco_1/sub_2_frequency 104 0–127 continuous VCO 1
/subharmonicon/vco_2/frequency 12 / 44 0–16383 continuous VCO 2
/subharmonicon/vco_2/sub_1_frequency 105 0–127 continuous VCO 2
/subharmonicon/vco_2/sub_2_frequency 106 0–127 continuous VCO 2
/subharmonicon/vcf_eg/attack 23 / 55 0–16383 continuous VCF EG
/subharmonicon/vcf_eg/decay 24 / 56 0–16383 continuous VCF EG
/subharmonicon/vca_eg/attack 28 / 60 0–16383 continuous VCA EG
/subharmonicon/vca_eg/decay 29 / 61 0–16383 continuous VCA EG
/subharmonicon/general/rhythm_generator_logic 113 0–127 continuous General

Performance MIDI

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