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KORG M1: MIDI CC, NRPN and OSC map

The KORG M1 as named OSC addresses — 76 SysEx commands — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device KORG M1
Vendor KORG
OSC prefix /m1
Source 🎛️ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/korg/m1.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/korg/m1.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /m1/eg_start_level

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as m1: ask “what can the KORG M1 do?” and it reads this map with list_routes. See the MCP guide.

SysEx commands (76)

OSC address Arguments
/m1/eg_start_level val: u7
/m1/eg_att_time val: u7
/m1/eg_att_level val: u7
/m1/eg_decay_time val: u7
/m1/eg_rel_time val: u7
/m1/eg_rel_level val: u7
/m1/eg_lev_vel_sen val: u7
/m1/eg_tim_vel_sen val: u7
/m1/osc1_waveform val: u7
/m1/osc_1_oct_4 val: u7
/m1/osc_1_oct_8 val: u7
/m1/osc_1_oct_16 val: u7
/m1/osc2_waveform val: u7
/m1/osc_2_oct_4 val: u7
/m1/osc_2_oct_8 val: u7
/m1/osc_2_oct_16 val: u7
/m1/osc_1_enable val: u7
/m1/osc_2_enable val: u7
/m1/waveform val: u7
/m1/key_sync val: u7
/m1/detune val: u7
/m1/interval val: u7
/m1/freq val: u7
/m1/delay val: u7
/m1/intensity val: u7
/m1/mode val: u7
/m1/assign val: u7
/m1/hold val: u7
/m1/eg_att_rate val: u7
/m1/eg_break_point val: u7
/m1/eg_slope_time val: u7
/m1/eg_sustain_lev val: u7
/m1/eg_int_level val: u7
/m1/eg_time_level val: u7
/m1/cutoff val: u7
/m1/eg_intensity val: u7
/m1/cut_kbd_track val: u7
/m1/cutoff_track val: u7
/m1/eg_time_trak val: u7
/m1/kbd_trk_amp val: u7
/m1/eg_time val: u7
/m1/eg_pol_s_at val: u7
/m1/eg_pol_s_de val: u7
/m1/eg_pol_s_su val: u7
/m1/eg_pol_s_re val: u7
/m1/amp_vel_sen val: u7
/m1/eg_time_vel val: u7
/m1/atk_time val: u7
/m1/atk_level val: u7
/m1/dec_time val: u7
/m1/break_point val: u7
/m1/slope_time val: u7
/m1/sustain_level val: u7
/m1/release_time val: u7
/m1/kbd_track_cntr val: u7
/m1/eg_pol_s_sl val: u7
/m1/rel_time val: u7
/m1/kbd_track_key val: u7
/m1/f_eg_pol_s_at val: u7
/m1/f_eg_pol_dec val: u7
/m1/eg_pol_s_slo val: u7
/m1/eg_pol_s_rel val: u7
/m1/pitch val: u7
/m1/pitch_mg val: u7
/m1/cutoff_vdf val: u7
/m1/vdf_mg val: u7
/m1/vdf_amplitude val: u7
/m1/pitch_bend val: u7
/m1/sweep val: u7
/m1/mg_freq_pitch val: u7
/m1/vdf val: u7
/m1/osc_1_on val: u7
/m1/osc_2_on val: u7
/m1/key_on val: u7
/m1/frequency val: u7
/m1/both val: u7

Performance MIDI

Notes, pitch bend and any CC are also available: /m1/note/on <note> <velocity>, /m1/cc/<number> <value>, /m1/pitchbend <0-16383>, /m1/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.