![Novation Nocturn](novation_nocturn_001.jpg)

In Linux the Nocturn appears as a standard MIDI device. The rotary knobs send relative CCs.
Here is a map of what the knobs and buttons do:
```
Buttons: 0x70..0x7F -- send nonzero to put LED on, zero for off.

Smooth rotaries: 0x40..0x47 -- send CC to set LED ring
  01 for clockwise, 7F for anticlockwise
  touch: 0x60..67 for touched, 00 for not touched
Middle encoder: 0x4A
  01 for clockwise, 7F for anticlockwise
  send CC to 0x50 to set display
```

Based on this, something I've come up with is a quick hack that combines [three nocturns
into a single virtual device](/music/midi/controllers/ThreeNocturnArray) with 24+3 encoders, 48 buttons, with 48 banks of CC values.