KORG prologue: MIDI CC, NRPN and OSC map¶
The KORG prologue as named OSC addresses — 56 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | KORG prologue |
|---|---|
| Vendor | KORG |
| OSC prefix | /prologue |
| 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/korg/prologue.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/prologue.json --out-port <N> --in-port <M>
Then send OSC to 127.0.0.1:7777, for example:
From Claude or any MCP client, the osc-bridge mcp server exposes this driver as prologue: ask “what can the KORG prologue do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (56)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/prologue/system/bank_select_msb |
0 | 0–127 | continuous | System | |
/prologue/system/bank_select_lsb |
32 | 0–127 | continuous | System | |
/prologue/timbre/edit_timbre |
85 | 0–127 | continuous | Timbre | |
/prologue/timbre/type |
86 | 0–127 | continuous | Timbre | |
/prologue/timbre/main_sub_balance |
8 | 0–127 | continuous | Timbre | |
/prologue/master/portamento_time |
5 | 0–127 | continuous | Master | |
/prologue/master/voice_spread |
14 | 0–127 | continuous | Master | |
/prologue/master/voice_mode_depth |
27 | 0–127 | continuous | Master | |
/prologue/vco_1/wave |
50 | 0–127 | continuous | VCO 1 | |
/prologue/vco_1/octave |
48 | 0–127 | continuous | VCO 1 | |
/prologue/vco_1/pitch |
34 | 0–127 | continuous | VCO 1 | |
/prologue/vco_1/shape |
36 | 0–127 | continuous | VCO 1 | |
/prologue/vco_2/wave |
51 | 0–127 | continuous | VCO 2 | |
/prologue/vco_2/octave |
49 | 0–127 | continuous | VCO 2 | |
/prologue/vco_2/pitch |
35 | 0–127 | continuous | VCO 2 | |
/prologue/vco_2/shape |
37 | 0–127 | continuous | VCO 2 | |
/prologue/multi_engine/type |
53 | 0–127 | continuous | Multi Engine | |
/prologue/multi_engine/octave |
52 | 0–127 | continuous | Multi Engine | |
/prologue/multi_engine/shape |
54 | 0–127 | continuous | Multi Engine | |
/prologue/mixer/vco_1_level |
39 | 0–127 | continuous | Mixer | |
/prologue/mixer/vco_2_level |
40 | 0–127 | continuous | Mixer | |
/prologue/mixer/multi_engine_level |
33 | 0–127 | continuous | Mixer | |
/prologue/filter/cutoff |
43 | 0–127 | continuous | Filter | |
/prologue/filter/resonance |
44 | 0–127 | continuous | Filter | |
/prologue/filter/eg_int |
45 | 0–127 | continuous | Filter | |
/prologue/filter/drive |
84 | 0–127 | continuous | Filter | |
/prologue/filter/low_cut |
82 | 0–127 | continuous | Filter | |
/prologue/filter/keytrack |
83 | 0–127 | continuous | Filter | |
/prologue/amp_eg/attack |
16 | 0–127 | continuous | Amp EG | |
/prologue/amp_eg/decay |
17 | 0–127 | continuous | Amp EG | |
/prologue/amp_eg/sustain |
18 | 0–127 | continuous | Amp EG | |
/prologue/amp_eg/release |
19 | 0–127 | continuous | Amp EG | |
/prologue/eg/attack |
20 | 0–127 | continuous | EG | |
/prologue/eg/decay |
21 | 0–127 | continuous | EG | |
/prologue/eg/sustain |
22 | 0–127 | continuous | EG | |
/prologue/eg/release |
23 | 0–127 | continuous | EG | |
/prologue/lfo/wave |
57 | 0–127 | continuous | LFO | |
/prologue/lfo/mode |
58 | 0–127 | continuous | LFO | |
/prologue/lfo/rate |
24 | 0–127 | continuous | LFO | |
/prologue/lfo/intensity |
26 | 0–127 | continuous | LFO | |
/prologue/lfo/target |
56 | 0–127 | continuous | LFO | |
/prologue/modulation/pitch_eg_target |
81 | 0–127 | continuous | Modulation | |
/prologue/modulation/pitch_eg_int |
42 | 0–127 | continuous | Modulation | |
/prologue/modulation/ring_sync |
80 | 0–127 | continuous | Modulation | |
/prologue/modulation/cross_mod_depth |
41 | 0–127 | continuous | Modulation | |
/prologue/effects_mod/type |
88 | 0–127 | continuous | Effects - Mod | |
/prologue/effects_mod/speed |
28 | 0–127 | continuous | Effects - Mod | |
/prologue/effects_mod/depth |
29 | 0–127 | continuous | Effects - Mod | |
/prologue/effects_mod/on_off |
92 | 0–127 | continuous | Effects - Mod | |
/prologue/effects_delay_reverb/type |
89 | 0–127 | continuous | Effects - Delay/Reverb | |
/prologue/effects_delay_reverb/time |
30 | 0–127 | continuous | Effects - Delay/Reverb | |
/prologue/effects_delay_reverb/depth |
31 | 0–127 | continuous | Effects - Delay/Reverb | |
/prologue/effects_delay_reverb/on_off |
94 | 0–127 | continuous | Effects - Delay/Reverb | |
/prologue/pedal/damper |
64 | 0–127 | continuous | Pedal | |
/prologue/utilities/all_sound_off |
120 | 0–127 | continuous | Utilities | |
/prologue/utilities/reset_all_controllers |
121 | 0–127 | continuous | Utilities |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /prologue/note/on <note> <velocity>, /prologue/cc/<number> <value>, /prologue/pitchbend <0-16383>, /prologue/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.