Waldorf Largo: MIDI CC, NRPN and OSC map¶
The Waldorf Largo as named OSC addresses — 111 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Waldorf Largo |
|---|---|
| Vendor | Waldorf |
| OSC prefix | /largo |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per Electra preset |
| Upstream | electra-preset |
| Driver file | devices/waldorf/largo.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/waldorf/largo.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 largo: ask “what can the Waldorf Largo do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (111)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/largo/octave |
27 | 0–127 | continuous | ||
/largo/semitone |
28 | 52–76 | continuous | ||
/largo/octave |
35 | 0–127 | continuous | ||
/largo/semitone |
36 | 52–76 | continuous | ||
/largo/octave |
42 | 0–127 | continuous | ||
/largo/semitone |
43 | 52–76 | continuous | ||
/largo/detune |
29 | -64–63 | continuous | ||
/largo/detune |
37 | -64–63 | continuous | ||
/largo/sync |
49 | 0–127 | continuous | ||
/largo/detune |
44 | -64–63 | continuous | ||
/largo/fm |
30 | 0–127 | continuous | ||
/largo/shape |
31 | 0–66 | continuous | ||
/largo/fm |
38 | 0–127 | continuous | ||
/largo/shape |
39 | 0–66 | continuous | ||
/largo/fm |
45 | 0–127 | continuous | ||
/largo/shape |
46 | 0–66 | continuous | ||
/largo/pw |
33 | 0–127 | continuous | ||
/largo/pwm |
34 | -64–63 | continuous | ||
/largo/pw |
40 | 0–127 | continuous | ||
/largo/pwm |
41 | -64–63 | continuous | ||
/largo/pw |
47 | 0–127 | continuous | ||
/largo/pwm |
48 | -64–63 | continuous | ||
/largo/level |
52 | 0–127 | continuous | ||
/largo/balance |
53 | -64–63 | continuous | ||
/largo/level |
56 | 0–127 | continuous | ||
/largo/balance |
57 | -64–63 | continuous | ||
/largo/level |
58 | 0–127 | continuous | ||
/largo/balance |
59 | -64–63 | continuous | ||
/largo/level |
54 | 0–127 | continuous | ||
/largo/balance |
55 | -64–63 | continuous | ||
/largo/level |
60 | 0–127 | continuous | ||
/largo/balance |
61 | -64–63 | continuous | ||
/largo/color |
62 | 0–127 | continuous | ||
/largo/pitch_mod |
50 | -64–63 | continuous | ||
/largo/type |
68 | 0–127 | continuous | ||
/largo/cutoff |
69 | 0–127 | continuous | ||
/largo/resonance |
70 | 0–127 | continuous | ||
/largo/drive |
71 | 0–127 | continuous | ||
/largo/keytrack |
72 | 0–127 | continuous | ||
/largo/level |
63 | 0–127 | continuous | ||
/largo/env_amount |
73 | 0–127 | continuous | ||
/largo/env_velocity |
74 | 0–127 | continuous | ||
/largo/cutoff_mod |
75 | 0–127 | continuous | ||
/largo/fm |
76 | 0–127 | continuous | ||
/largo/pan |
77 | 0–127 | continuous | ||
/largo/panmod |
78 | 0–127 | continuous | ||
/largo/type |
79 | 0–127 | continuous | ||
/largo/cutoff |
80 | 0–127 | continuous | ||
/largo/resonance |
81 | 0–127 | continuous | ||
/largo/drive |
82 | 0–127 | continuous | ||
/largo/keytrack |
83 | 0–127 | continuous | ||
/largo/level |
90 | 0–127 | continuous | ||
/largo/env_amount |
84 | 0–127 | continuous | ||
/largo/env_velocity |
85 | 0–127 | continuous | ||
/largo/cutoff_mod |
86 | 0–127 | continuous | ||
/largo/fm |
87 | 0–127 | continuous | ||
/largo/pan |
88 | 0–127 | continuous | ||
/largo/panmod |
89 | 0–127 | continuous | ||
/largo/attack |
95 | 0–127 | continuous | ||
/largo/decay |
96 | 0–127 | continuous | ||
/largo/sustain |
97 | 0–127 | continuous | ||
/largo/decay_2 |
98 | 0–127 | continuous | ||
/largo/sustain_2 |
99 | 0–127 | continuous | ||
/largo/release |
100 | 0–127 | continuous | ||
/largo/routing |
67 | 0–127 | continuous | ||
/largo/shape |
15 | 0–127 | continuous | ||
/largo/speed |
16 | 0–127 | continuous | ||
/largo/sync |
17 | 0–127 | continuous | ||
/largo/delay |
18 | 0–127 | continuous | ||
/largo/octave_range |
12 | 0–127 | continuous | ||
/largo/shape |
19 | 0–127 | continuous | ||
/largo/speed |
20 | 0–127 | continuous | ||
/largo/sync |
21 | 0–127 | continuous | ||
/largo/delay |
22 | 0–127 | continuous | ||
/largo/arp_length |
13 | 0–127 | continuous | ||
/largo/shape |
23 | 0–127 | continuous | ||
/largo/speed |
24 | 0–127 | continuous | ||
/largo/sync |
25 | 0–127 | continuous | ||
/largo/delay |
26 | 0–127 | continuous | ||
/largo/active |
14 | 0–127 | continuous | ||
/largo/velocity |
91 | 0–127 | continuous | ||
/largo/mod_amt |
92 | 0–127 | continuous | ||
/largo/attack |
101 | 0–127 | continuous | ||
/largo/decay |
102 | 0–127 | continuous | ||
/largo/sustain |
103 | 0–127 | continuous | ||
/largo/decay_2 |
104 | 0–127 | continuous | ||
/largo/sustain_2 |
105 | 0–127 | continuous | ||
/largo/release |
106 | 0–127 | continuous | ||
/largo/attack |
107 | 0–127 | continuous | ||
/largo/decay |
108 | 0–127 | continuous | ||
/largo/sustain |
109 | 0–127 | continuous | ||
/largo/decay_2 |
110 | 0–127 | continuous | ||
/largo/sustain_2 |
111 | 0–127 | continuous | ||
/largo/release |
112 | 0–127 | continuous | ||
/largo/attack |
113 | 0–127 | continuous | ||
/largo/decay |
114 | 0–127 | continuous | ||
/largo/sustain |
115 | 0–127 | continuous | ||
/largo/decay_2 |
116 | 0–127 | continuous | ||
/largo/sustain_2 |
117 | 0–127 | continuous | ||
/largo/release |
118 | 0–127 | continuous | ||
/largo/mod_wheel |
1 | 0–127 | continuous | ||
/largo/glide_time |
5 | 0–127 | continuous | ||
/largo/layer_volume |
7 | 0–127 | continuous | ||
/largo/pan |
10 | -64–63 | continuous | ||
/largo/bank_slect_lsb |
32 | 0–127 | continuous | ||
/largo/sustain_pedal |
64 | 0–127 | continuous | ||
/largo/glide_active |
65 | 0–127 | continuous | ||
/largo/sostenuto |
66 | 0–127 | continuous | ||
/largo/all_sounds_off |
120 | 0–127 | continuous | ||
/largo/reset_all_ctrl |
121 | 0–127 | continuous | ||
/largo/all_notes_off |
123 | 0–127 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /largo/note/on <note> <velocity>, /largo/cc/<number> <value>, /largo/pitchbend <0-16383>, /largo/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.