Nord Lead (Rack): MIDI CC, NRPN and OSC map¶
The Nord Lead (Rack) as named OSC addresses — 185 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Nord Lead (Rack) |
|---|---|
| Vendor | Nord |
| OSC prefix | /lead_rack |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per pencilresearch canonical CSV |
| Upstream | electra-preset |
| Driver file | devices/nord/lead_rack.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/nord/lead_rack.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 lead_rack: ask “what can the Nord Lead (Rack) do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (185)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/lead_rack/porta_time |
5 | 0–127 | continuous | ||
/lead_rack/gain |
7 | 0–127 | continuous | ||
/lead_rack/o_balance |
8 | 0–127 | continuous | ||
/lead_rack/po_lm |
15 | 0–127 | continuous | ||
/lead_rack/unison |
16 | 0–127 | continuous | ||
/lead_rack/oct_shift |
17 | 0–127 | continuous | ||
/lead_rack/mw_destination |
18 | 0–127 | continuous | ||
/lead_rack/l1_rate |
19 | 0–127 | continuous | ||
/lead_rack/l1_wave |
20 | 0–127 | continuous | ||
/lead_rack/l1_destination |
21 | 0–127 | continuous | ||
/lead_rack/l1_amt |
22 | 0–127 | continuous | ||
/lead_rack/l2_arp_rate |
23 | 0–127 | continuous | ||
/lead_rack/l2_dest_arp_mode |
24 | 0–127 | continuous | ||
/lead_rack/lfo2_amt_arp_rate |
25 | 0–127 | continuous | ||
/lead_rack/mos_attack |
26 | 0–127 | continuous | ||
/lead_rack/mod_decay |
27 | 0–127 | continuous | ||
/lead_rack/m_destination |
28 | 0–127 | continuous | ||
/lead_rack/mod_amt |
29 | 0–127 | continuous | ||
/lead_rack/o1_wave |
30 | 0–127 | continuous | ||
/lead_rack/o2_wave |
31 | 0–127 | continuous | ||
/lead_rack/o_fine_tune |
33 | 0–127 | continuous | ||
/lead_rack/o2_kbd_track |
34 | 0–127 | continuous | ||
/lead_rack/o_sync |
35 | 0–127 | continuous | ||
/lead_rack/amp_decay |
36 | 0–127 | continuous | ||
/lead_rack/amp_sustain |
37 | 0–127 | continuous | ||
/lead_rack/filter_attack |
38 | 0–127 | continuous | ||
/lead_rack/filter_decay |
39 | 0–127 | continuous | ||
/lead_rack/filter_sustain |
40 | 0–127 | continuous | ||
/lead_rack/filter_release |
41 | 0–127 | continuous | ||
/lead_rack/resonance |
42 | 0–127 | continuous | ||
/lead_rack/f_amt |
43 | 0–127 | continuous | ||
/lead_rack/f_mode |
44 | 0–127 | continuous | ||
/lead_rack/f_velocity |
45 | 0–127 | continuous | ||
/lead_rack/kbd_track |
46 | 0–127 | continuous | ||
/lead_rack/p_auto |
65 | 0–127 | continuous | ||
/lead_rack/fm_depth |
70 | 0–127 | continuous | ||
/lead_rack/amp_release |
72 | 0–127 | continuous | ||
/lead_rack/amp_attack |
73 | 0–127 | continuous | ||
/lead_rack/cutoff |
74 | 0–127 | continuous | ||
/lead_rack/sem_tones |
78 | 0–127 | continuous | ||
/lead_rack/os_pw |
79 | 0–127 | continuous | ||
/lead_rack/waveform |
30 | 0–127 | continuous | ||
/lead_rack/fm_amount |
70 | 0–127 | continuous | ||
/lead_rack/waveform |
31 | 0–127 | continuous | ||
/lead_rack/semitones |
78 | -60–60 | continuous | ||
/lead_rack/fine_tune |
33 | -64–64 | continuous | ||
/lead_rack/kbd_tracking |
34 | 0–127 | continuous | ||
/lead_rack/pulse_width |
79 | 0–127 | continuous | ||
/lead_rack/osc_sync |
35 | 0–127 | continuous | ||
/lead_rack/osc1_mix_osc2 |
8 | -64–64 | continuous | ||
/lead_rack/adsr |
73 | 0–127 | continuous | ||
/lead_rack/adsr |
36 | 0–127 | continuous | ||
/lead_rack/adsr |
37 | 0–127 | continuous | ||
/lead_rack/adsr |
72 | 0–127 | continuous | ||
/lead_rack/type |
44 | 0–127 | continuous | ||
/lead_rack/frequency |
74 | 0–127 | continuous | ||
/lead_rack/adsr |
38 | 0–127 | continuous | ||
/lead_rack/adsr |
39 | 0–127 | continuous | ||
/lead_rack/adsr |
40 | 0–127 | continuous | ||
/lead_rack/adsr |
41 | 0–127 | continuous | ||
/lead_rack/env_amount |
43 | 0–127 | continuous | ||
/lead_rack/velocity |
45 | 0–127 | continuous | ||
/lead_rack/rate |
19 | 0–127 | continuous | ||
/lead_rack/waveform |
20 | 0–127 | continuous | ||
/lead_rack/destination |
21 | 0–127 | continuous | ||
/lead_rack/amount |
22 | 0–127 | continuous | ||
/lead_rack/kbd_tracking |
46 | 0–127 | continuous | ||
/lead_rack/rate |
23 | 0–127 | continuous | ||
/lead_rack/destination |
24 | 0–127 | continuous | ||
/lead_rack/amt_arp_range |
25 | 0–127 | continuous | ||
/lead_rack/time |
5 | 0–127 | continuous | ||
/lead_rack/auto |
65 | 0–127 | continuous | ||
/lead_rack/attack |
26 | 0–127 | continuous | ||
/lead_rack/decay |
27 | 0–127 | continuous | ||
/lead_rack/destination |
28 | 0–127 | continuous | ||
/lead_rack/amount |
29 | -64–64 | continuous | ||
/lead_rack/mode |
15 | 0–127 | continuous | ||
/lead_rack/waveform |
30 | 0–127 | continuous | ||
/lead_rack/fm_amount |
70 | 0–127 | continuous | ||
/lead_rack/waveform |
31 | 0–127 | continuous | ||
/lead_rack/semitones |
78 | -60–60 | continuous | ||
/lead_rack/fine_tune |
33 | -64–64 | continuous | ||
/lead_rack/kbd_tracking |
34 | 0–127 | continuous | ||
/lead_rack/pulse_width |
79 | 0–127 | continuous | ||
/lead_rack/osc_sync |
35 | 0–127 | continuous | ||
/lead_rack/osc1_mix_osc2 |
8 | -64–64 | continuous | ||
/lead_rack/adsr |
73 | 0–127 | continuous | ||
/lead_rack/adsr |
36 | 0–127 | continuous | ||
/lead_rack/adsr |
37 | 0–127 | continuous | ||
/lead_rack/adsr |
72 | 0–127 | continuous | ||
/lead_rack/type |
44 | 0–127 | continuous | ||
/lead_rack/frequency |
74 | 0–127 | continuous | ||
/lead_rack/adsr |
38 | 0–127 | continuous | ||
/lead_rack/adsr |
39 | 0–127 | continuous | ||
/lead_rack/adsr |
40 | 0–127 | continuous | ||
/lead_rack/adsr |
41 | 0–127 | continuous | ||
/lead_rack/env_amount |
43 | 0–127 | continuous | ||
/lead_rack/velocity |
45 | 0–127 | continuous | ||
/lead_rack/rate |
19 | 0–127 | continuous | ||
/lead_rack/waveform |
20 | 0–127 | continuous | ||
/lead_rack/destination |
21 | 0–127 | continuous | ||
/lead_rack/amount |
22 | 0–127 | continuous | ||
/lead_rack/kbd_tracking |
46 | 0–127 | continuous | ||
/lead_rack/rate |
23 | 0–127 | continuous | ||
/lead_rack/destination |
24 | 0–127 | continuous | ||
/lead_rack/amt_arp_range |
25 | 0–127 | continuous | ||
/lead_rack/time |
5 | 0–127 | continuous | ||
/lead_rack/auto |
65 | 0–127 | continuous | ||
/lead_rack/attack |
26 | 0–127 | continuous | ||
/lead_rack/decay |
27 | 0–127 | continuous | ||
/lead_rack/destination |
28 | 0–127 | continuous | ||
/lead_rack/amount |
29 | -64–64 | continuous | ||
/lead_rack/mode |
15 | 0–127 | continuous | ||
/lead_rack/waveform |
30 | 0–127 | continuous | ||
/lead_rack/fm_amount |
70 | 0–127 | continuous | ||
/lead_rack/waveform |
31 | 0–127 | continuous | ||
/lead_rack/semitones |
78 | -60–60 | continuous | ||
/lead_rack/fine_tune |
33 | -64–64 | continuous | ||
/lead_rack/kbd_tracking |
34 | 0–127 | continuous | ||
/lead_rack/pulse_width |
79 | 0–127 | continuous | ||
/lead_rack/osc_sync |
35 | 0–127 | continuous | ||
/lead_rack/osc1_mix_osc2 |
8 | -64–64 | continuous | ||
/lead_rack/adsr |
73 | 0–127 | continuous | ||
/lead_rack/adsr |
36 | 0–127 | continuous | ||
/lead_rack/adsr |
37 | 0–127 | continuous | ||
/lead_rack/adsr |
72 | 0–127 | continuous | ||
/lead_rack/type |
44 | 0–127 | continuous | ||
/lead_rack/frequency |
74 | 0–127 | continuous | ||
/lead_rack/adsr |
38 | 0–127 | continuous | ||
/lead_rack/adsr |
39 | 0–127 | continuous | ||
/lead_rack/adsr |
40 | 0–127 | continuous | ||
/lead_rack/adsr |
41 | 0–127 | continuous | ||
/lead_rack/env_amount |
43 | 0–127 | continuous | ||
/lead_rack/velocity |
45 | 0–127 | continuous | ||
/lead_rack/rate |
19 | 0–127 | continuous | ||
/lead_rack/waveform |
20 | 0–127 | continuous | ||
/lead_rack/destination |
21 | 0–127 | continuous | ||
/lead_rack/amount |
22 | 0–127 | continuous | ||
/lead_rack/kbd_tracking |
46 | 0–127 | continuous | ||
/lead_rack/rate |
23 | 0–127 | continuous | ||
/lead_rack/destination |
24 | 0–127 | continuous | ||
/lead_rack/amt_arp_range |
25 | 0–127 | continuous | ||
/lead_rack/time |
5 | 0–127 | continuous | ||
/lead_rack/auto |
65 | 0–127 | continuous | ||
/lead_rack/attack |
26 | 0–127 | continuous | ||
/lead_rack/decay |
27 | 0–127 | continuous | ||
/lead_rack/destination |
28 | 0–127 | continuous | ||
/lead_rack/amount |
29 | -64–64 | continuous | ||
/lead_rack/mode |
15 | 0–127 | continuous | ||
/lead_rack/waveform |
30 | 0–127 | continuous | ||
/lead_rack/fm_amount |
70 | 0–127 | continuous | ||
/lead_rack/waveform |
31 | 0–127 | continuous | ||
/lead_rack/semitones |
78 | -60–60 | continuous | ||
/lead_rack/fine_tune |
33 | -64–64 | continuous | ||
/lead_rack/kbd_tracking |
34 | 0–127 | continuous | ||
/lead_rack/pulse_width |
79 | 0–127 | continuous | ||
/lead_rack/osc_sync |
35 | 0–127 | continuous | ||
/lead_rack/osc1_mix_osc2 |
8 | -64–64 | continuous | ||
/lead_rack/adsr |
73 | 0–127 | continuous | ||
/lead_rack/adsr |
36 | 0–127 | continuous | ||
/lead_rack/adsr |
37 | 0–127 | continuous | ||
/lead_rack/adsr |
72 | 0–127 | continuous | ||
/lead_rack/type |
44 | 0–127 | continuous | ||
/lead_rack/frequency |
74 | 0–127 | continuous | ||
/lead_rack/adsr |
38 | 0–127 | continuous | ||
/lead_rack/adsr |
39 | 0–127 | continuous | ||
/lead_rack/adsr |
40 | 0–127 | continuous | ||
/lead_rack/adsr |
41 | 0–127 | continuous | ||
/lead_rack/env_amount |
43 | 0–127 | continuous | ||
/lead_rack/velocity |
45 | 0–127 | continuous | ||
/lead_rack/rate |
19 | 0–127 | continuous | ||
/lead_rack/waveform |
20 | 0–127 | continuous | ||
/lead_rack/destination |
21 | 0–127 | continuous | ||
/lead_rack/amount |
22 | 0–127 | continuous | ||
/lead_rack/kbd_tracking |
46 | 0–127 | continuous | ||
/lead_rack/rate |
23 | 0–127 | continuous | ||
/lead_rack/destination |
24 | 0–127 | continuous | ||
/lead_rack/amt_arp_range |
25 | 0–127 | continuous | ||
/lead_rack/time |
5 | 0–127 | continuous | ||
/lead_rack/auto |
65 | 0–127 | continuous | ||
/lead_rack/attack |
26 | 0–127 | continuous | ||
/lead_rack/decay |
27 | 0–127 | continuous | ||
/lead_rack/destination |
28 | 0–127 | continuous | ||
/lead_rack/amount |
29 | -64–64 | continuous | ||
/lead_rack/mode |
15 | 0–127 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /lead_rack/note/on <note> <velocity>, /lead_rack/cc/<number> <value>, /lead_rack/pitchbend <0-16383>, /lead_rack/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.