Sleepy Circuits Hypno MIDI CCs & NRPNs

MIDI implementation details for the Sleepy Circuits Hypno.

Last update: June 21, 2026 • 49 parameters


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

Main Page

Parameter CC Range Usage Description Orientation
Frequency A 1 [0–127]
Shape A frequency
0-based
Color 2 [0–127]
Colors hue shift
0-based
Frequency B 3 [0–127]
Shape B frequency
0-based
Master gain 4 [0–127]
Gain + feedback for both shapes
Centered
Rotation A 5 [0–127]
Shape A rotation
Centered
Rotation B 6 [0–127]
Shape B rotation
Centered
Polarization A 7 [0–127]
Shape A polarization / y offset
0-based
Polarization B 8 [0–127]
Shape B polarization / y offset
0-based

Shape A

Parameter CC Range Usage Description Orientation
Drift A 9 [0–127]
Shape A scrolling
Centered
A color offset 10 [0–127]
Shape A hue offset from root color
0-based
A -> B Gain 11 [0–127]
Amount of shape A modulating shape B
0-based
Saturation A 12 [0–127]
Color saturation from white to full saturation
0-based
Self-mod rotation A 13 [0–127]
Make shape rotation drift
Centered
Fractal axis A 14 [0–127]
Axis of repeats / fractals
0-based
Fractal amount A 15 [0–127]
Mirror / fractal shape A
0-based
Self-mod polar / fractal A 16 [0–127]
Turns fractal axis continuously (if fractal is off toggles standard / mirrored image repeat)
Centered

Shape B

Parameter CC Range Usage Description Orientation
Drift B 17 [0–127]
Shape B scrolling
0-based
B color offset 18 [0–127]
Shape B hue offset from root color
0-based
B -> A gain 19 [0–127]
Amount of shape B modulating shape A
0-based
Saturation B 20 [0–127]
Color saturation from white to full saturation
Centered
Self-mod rotation B 21 [0–127]
Make shape rotation drift
0-based
Fractal axis B 22 [0–127]
Axis of repeats / fractals
0-based
Fractal amount B 23 [0–127]
Mirror / fractal shape B
0-based
Self-mod polar / fractal B 24 [0–127]
Turns fractal axis continuously (if fractal is off toggles standard / mirrored image repeat)
0-based

Feedback

Parameter CC Range Usage Description Orientation
FB -> A gain 25 [0–127]
Amount of feedback going back to shape A
0-based
FB hue shift 26 [0–127]
Hue shift around edges of shapes
0-based
FB -> B gain 27 [0–127]
Amount of feedback going back to shape B
0-based
FB zoom 28 [0–127]
Zoom the feedback frame in and out
Centered
FB rotation 29 [0–127]
Rotate feedback frame
Centered
FB rotation self-mod 30 [0–127]
Rotate feedback frame continuously
Centered
FB X offset 31 [0–127]
Offset feedback frame on X axis
0-based
FB Y offset 32 [0–127]
Offset feedback frame on Y axis
0-based

Video A

Parameter CC Range Usage Description Orientation
X crop A 33 [0–127]
Center relative crop on X axis
0-based
Lumakey min A 34 [0–127]
Lower bound of lumakey
0-based
Y crop A 35 [0–127]
Center relative crop on Y axis
0-based
Lumakey max A 36 [0–127]
Upper bound of lumakey
0-based
File index A 37 [0–127]
Choose video / image file
0-based
Aspect A 38 [0–127]
X/Y stretching
Centered
Folder A 39 [0–127]
Choose folder index
0-based

Video B

Parameter CC Range Usage Description Orientation
X crop B 41 [0–127]
Center relative crop on X axis
0-based
Lumakey min B 42 [0–127]
Lower bound of lumakey
0-based
Y crop B 43 [0–127]
Center relative crop on Y axis
0-based
Lumakey max B 44 [0–127]
Upper bound of lumakey
0-based
File index B 45 [0–127]
Choose video / image file
0-based
Aspect B 46 [0–127]
X/Y stretching
Centered
Folder B 47 [0–127]
Choose folder index
0-based

Mode Index

Parameter CC Range Usage Description Orientation
Shape index A 49 [0–127]
Shape A index
0-based
Shape index B 50 [0–127]
Shape B index
0-based
FB mode index 51 [0–127]
Feedback mode index
0-based

This dataset is provided under the Creative Commons Attribution Share Alike 4.0 International license.