KORG NTS-1 MIDI CC chart, NRPN and OSC map¶
The KORG NTS-1 MIDI implementation: 77 CC, each named, for Claude (MCP), SuperCollider or any OSC app.
| Device | KORG NTS-1 |
|---|---|
| Vendor | KORG |
| OSC prefix | /nts_1 |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per pencilresearch canonical CSV |
| Upstream | electra-preset |
| Driver file | devices/korg/nts_1.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/nts_1.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 nts_1: ask “what can the KORG NTS-1 do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (77)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/nts_1/envelope_generator/type |
14 | 0–127 | continuous | Envelope Generator | |
/nts_1/envelope_generator/attack |
16 | 0–127 | continuous | Envelope Generator | |
/nts_1/envelope_generator/release |
19 | 0–127 | continuous | Envelope Generator | |
/nts_1/tremolo/depth |
20 | 0–127 | continuous | Tremolo | |
/nts_1/tremolo/rate |
21 | 0–127 | continuous | Tremolo | |
/nts_1/oscillator/lfo_rate |
24 | 0–127 | continuous | Oscillator | |
/nts_1/oscillator/lfo_depth |
26 | 0–127 | continuous | Oscillator | |
/nts_1/modulation/time |
28 | 0–127 | continuous | Modulation | |
/nts_1/modulation/depth |
29 | 0–127 | continuous | Modulation | |
/nts_1/delay/time |
30 | 0–127 | continuous | Delay | |
/nts_1/delay/depth |
31 | 0–127 | continuous | Delay | |
/nts_1/delay/mix |
33 | 0–127 | continuous | Delay | |
/nts_1/reverb/time |
34 | 0–127 | continuous | Reverb | |
/nts_1/reverb/depth |
35 | 0–127 | continuous | Reverb | |
/nts_1/reverb/mix |
36 | 0–127 | continuous | Reverb | |
/nts_1/filter/type |
42 | 0–127 | continuous | Filter | |
/nts_1/filter/cutoff |
43 | 0–127 | continuous | Filter | |
/nts_1/filter/resonance |
44 | 0–127 | continuous | Filter | |
/nts_1/filter/sweep_depth |
45 | 0–127 | continuous | Filter | |
/nts_1/filter/sweep_rate |
46 | 0–127 | continuous | Filter | |
/nts_1/oscillator/type |
53 | 0–127 | continuous | Oscillator | |
/nts_1/oscillator/shape |
54 | 0–127 | continuous | Oscillator | |
/nts_1/oscillator/alt |
55 | 0–127 | continuous | Oscillator | |
/nts_1/fx/modulation_type |
88 | 0–127 | continuous | FX | |
/nts_1/fx/delay_type |
89 | 0–127 | continuous | FX | |
/nts_1/fx/reverb_type |
90 | 0–127 | continuous | FX | |
/nts_1/arpeggiator/pattern |
117 | 0–127 | continuous | Arpeggiator | |
/nts_1/arpeggiator/intervals |
118 | 0–127 | continuous | Arpeggiator | |
/nts_1/arpeggiator/length |
119 | 0–127 | continuous | Arpeggiator | |
/nts_1/osc_type |
53 | 0–127 | continuous | ||
/nts_1/shape |
54 | 0–127 | continuous | ||
/nts_1/alt |
55 | 0–127 | continuous | ||
/nts_1/filter_type |
42 | 0–127 | continuous | ||
/nts_1/cutoff |
43 | 0–127 | continuous | ||
/nts_1/resonance |
44 | 0–127 | continuous | ||
/nts_1/eg_type |
14 | 0–127 | continuous | ||
/nts_1/attack |
16 | 0–127 | continuous | ||
/nts_1/release |
19 | 0–127 | continuous | ||
/nts_1/depth |
45 | -64–63 | continuous | ||
/nts_1/rate |
46 | -64–63 | continuous | ||
/nts_1/type |
88 | 0–127 | continuous | ||
/nts_1/time |
28 | 0–127 | continuous | ||
/nts_1/type |
89 | 0–127 | continuous | ||
/nts_1/time |
30 | 0–127 | continuous | ||
/nts_1/type |
90 | 0–127 | continuous | ||
/nts_1/time |
34 | 0–127 | continuous | ||
/nts_1/depth |
29 | 0–127 | continuous | ||
/nts_1/depth |
31 | 0–127 | continuous | ||
/nts_1/mix |
33 | 0–127 | continuous | ||
/nts_1/depth |
35 | 0–127 | continuous | ||
/nts_1/mix |
36 | 0–127 | continuous | ||
/nts_1/rate |
21 | 0–127 | continuous | ||
/nts_1/depth |
20 | 0–127 | continuous | ||
/nts_1/rate |
24 | 0–127 | continuous | ||
/nts_1/depth |
26 | -64–63 | continuous | ||
/nts_1/pattern |
117 | 0–127 | continuous | ||
/nts_1/intervals |
118 | 0–127 | continuous | ||
/nts_1/length |
119 | 0–127 | continuous | ||
/nts_1/alternate |
55 | 0–127 | continuous | ||
/nts_1/sweep_depth |
45 | -64–63 | continuous | ||
/nts_1/sweep_rate |
46 | -64–63 | continuous | ||
/nts_1/mod_type |
88 | 0–127 | continuous | ||
/nts_1/mod_time |
28 | 0–127 | continuous | ||
/nts_1/delay_type |
89 | 0–127 | continuous | ||
/nts_1/delay_time |
30 | 0–127 | continuous | ||
/nts_1/reverb_type |
90 | 0–127 | continuous | ||
/nts_1/reverb_time |
34 | 0–127 | continuous | ||
/nts_1/mod_depth |
29 | 0–127 | continuous | ||
/nts_1/delay_depth |
31 | 0–127 | continuous | ||
/nts_1/delay_mix |
33 | 0–127 | continuous | ||
/nts_1/reverb_depth |
35 | 0–127 | continuous | ||
/nts_1/reverb_mix |
36 | 0–127 | continuous | ||
/nts_1/tremolo_rate |
21 | 0–127 | continuous | ||
/nts_1/tremolo_depth |
20 | 0–127 | continuous | ||
/nts_1/arp_pattern |
117 | 0–127 | continuous | ||
/nts_1/lfo_rate |
24 | 0–127 | continuous | ||
/nts_1/lfo_depth |
26 | -64–63 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /nts_1/note/on <note> <velocity>, /nts_1/cc/<number> <value>, /nts_1/pitchbend <0-16383>, /nts_1/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.
Frequently asked questions¶
Which MIDI CC controls the filter cutoff on the KORG NTS-1?
CC 42 (0–127), named /nts_1/filter/type in SynthHub's map.
How many parameters of the KORG NTS-1 can be controlled over MIDI?
SynthHub's map of the KORG NTS-1 lists 77 MIDI CC parameters, each with its number, range and a readable name; the full chart is on this page.
Can an AI agent like Claude control the KORG NTS-1?
Yes: SynthHub's hosted MCP server knows the KORG NTS-1's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.