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KORG EX-8000: MIDI CC, NRPN and OSC map

The KORG EX-8000 as named OSC addresses — 36 SysEx commands — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device KORG EX-8000
Vendor KORG
OSC prefix /ex_8000
Source 🎛️ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/korg/ex_8000.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/ex_8000.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /ex_8000/octave

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as ex_8000: ask “what can the KORG EX-8000 do?” and it reads this map with list_routes. See the MCP guide.

SysEx commands (36)

OSC address Arguments
/ex_8000/octave val: u7
/ex_8000/waveform val: u7
/ex_8000/osc_1_level val: u7
/ex_8000/noise_level val: u7
/ex_8000/assign_mode val: u7
/ex_8000/ocatve val: u7
/ex_8000/osc_2_level val: u7
/ex_8000/interval val: u7
/ex_8000/detune val: u7
/ex_8000/cutoff val: u7
/ex_8000/resonance val: u7
/ex_8000/kbd_tracking val: u7
/ex_8000/eg_polarity val: u7
/ex_8000/eg_intensity val: u7
/ex_8000/adsr val: u7
/ex_8000/break_point val: u7
/ex_8000/slope val: u7
/ex_8000/vel_sens val: u7
/ex_8000/frequency val: u7
/ex_8000/delay val: u7
/ex_8000/osc val: u7
/ex_8000/vcf val: u7
/ex_8000/osc_select val: u7
/ex_8000/mode val: u7
/ex_8000/time val: u7
/ex_8000/intensity val: u7
/ex_8000/portamento val: u7
/ex_8000/osc_mg val: u7
/ex_8000/vca val: u7
/ex_8000/pitchbnd_range val: u7
/ex_8000/pitchbnd_vcf val: u7
/ex_8000/factor val: u7
/ex_8000/feedback val: u7
/ex_8000/mod_freq val: u7
/ex_8000/mod_intensity val: u7
/ex_8000/level val: u7

Performance MIDI

Notes, pitch bend and any CC are also available: /ex_8000/note/on <note> <velocity>, /ex_8000/cc/<number> <value>, /ex_8000/pitchbend <0-16383>, /ex_8000/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.