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Moog Grandmother: MIDI CC, NRPN and OSC map

The Moog Grandmother as named OSC addresses — 22 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Moog Grandmother
Vendor Moog
OSC prefix /grandmother
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/grandmother.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/grandmother.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /grandmother/modulation/mod_wheel 8191

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

MIDI CC and NRPN parameters (22)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/grandmother/modulation/mod_wheel 1 / 33 0–16383 continuous Modulation
/grandmother/modulation/rate 3 / 35 0–16383 continuous Modulation
/grandmother/glide/time 5 / 37 0–16383 continuous Glide
/grandmother/arp_seq/arpeggiator_sequencer_rate 8 / 40 0–16383 continuous Arp/seq
/grandmother/oscillators/oscillator_2_frequency 12 / 44 0–16383 continuous Oscillators
/grandmother/glide/on_off 65 0–127 continuous Glide
/grandmother/arp_seq/arpeggiator_sequencer_hold 69 0–127 continuous Arp/seq
/grandmother/arp_seq/arpeggiator_sequencer_play 73 0–127 continuous Arp/seq
/grandmother/oscillators/oscillator_1_octave 74 0–127 continuous Oscillators
/grandmother/oscillators/oscillator_2_octave 75 0–127 continuous Oscillators
/grandmother/oscillators/oscillator_2_sync 77 0–127 continuous Oscillators
/grandmother/glide/type 85 0–127 continuous Glide
/grandmother/general/keyboard_octave 89 0–127 continuous General
/grandmother/arp_seq/arpeggiator_sequencer_clock_division 90 0–127 continuous Arp/seq
/grandmother/arp_seq/arpeggiator_sequencer_mode 91 0–127 continuous Arp/seq
/grandmother/arp_seq/arpeggiator_sequencer_pattern 92 0–127 continuous Arp/seq
/grandmother/arp_seq/arpeggiator_sequencer_number 93 0–127 continuous Arp/seq
/grandmother/glide/legato_glide 94 0–127 continuous Glide
/grandmother/glide/gated_glide 103 0–127 continuous Glide
/grandmother/general/pitch_bend_up_amount 107 0–127 continuous General
/grandmother/general/pitch_bend_down_amount 108 0–127 continuous General
/grandmother/general/keyboard_transpose_semitones 119 0–127 continuous General

Performance MIDI

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