Bastl Instruments Kastle 2 Alchemist MIDI CCs & NRPNs

MIDI implementation details for the Bastl Instruments Kastle 2 Alchemist.

Last update: January 14, 2026 • 21 parameters


Contributions welcome! You can email us your edited CSV if you don't want to use GitHub.

General

Parameter CC Range Usage Description Orientation
MODE 1 [0–127]
Maps 0-127 to 0-[number of values]
Note: Updated only right before trigger or Note On
0-based
Output volume 7 [0–127]
SHIFT + top right knob
0-based
Input gain 9 [0–127]
SHIFT + top left knob
0-based
PITCH 14 [0–127]
Top right knob
Centered
PITCH MOD 15 [0–127]
Top left knob
Centered
TIMBRE 16 [0–127]
Middle right knob
0-based
TIMBRE MOD 17 [0–127]
Middle left knob
Centered
ENV 18 [0–127]
Center knob
Note: Updated only right before trigger or Note On
0-based
ENV MOD 19 [0–127]
SHIFT + center knob
Note: Updated only right before trigger or Note On
0-based
RATIO 20 [0–127]
SHIFT + middle right knob
Centered
FX 21 [0–127]
SHIFT + middle left knob
0-based
LFO 22 [0–127]
Bottom right knob
Centered
LFO MOD 23 [0–127]
Bottom left knob
Centered
TEMPO 24 [0–127]
SHIFT + bottom right knob
0-based
RHYTHM 25 [0–127]
SHIFT + bottom left knob
Centered
SCALE 27 [0–127]
MODE + top left knob
0-based
PITCH ROOT 28 [0–127]
MODE + middle left knob
Centered
FINE TUNE 29 [0–127]
MODE + bottom left knob
Centered
Portamento 30 [0–127]
MODE + middle right knob, counter-clockwise
0-based
Pitch envelope 31 [0–127]
MODE + middle right knob, clockwise
0-based
Reset all controllers 121 [0–127]
Goes back to knob control for values
0-based

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