Fred's Lab Buzzzy! MIDI CCs & NRPNs

MIDI implementation details for the Fred's Lab Buzzzy!.

Last update: April 1, 2026 • 31 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
Modwheel 1 [0–127]
Modulation wheel (vibrato level)
0-based
All sounds off 120 [0–127]
Mute immediately all sound from the part
0-based
Reset all controllers 121 [0–127]
Set all controllers to their initial value
0-based
All notes off 123 [0–127]
Release immediately all notes
0-based

Level

Parameter CC Range Usage Description Orientation
Volume 7 [0–127]
Mixer level
0-based

Pan

Parameter CC Range Usage Description Orientation
Pan 10 [0–127]
Mixer pan
Centered

Oscillator

Parameter CC Range Usage Description Orientation
Coarse 12 [0–127]
Oscillator coarse (semitones)
Centered
Fine 13 [0–127]
Oscillator fine (cents)
Centered
Wave 70 [0–127]
Oscillator wave (variation)
0-based
Engine 75 [0–127]
Oscillator engine
0-based

Arpeggiator

Parameter CC Range Usage Description Orientation
Tempo 16 [0–127]
Arpeggiator tempo (when not clocked)
0-based
Division 17 [0–127]
Arpeggiator division
0-based
Repeat 18 [0–127]
Arpeggiator repeat
0-based
Gate 19 [0–127]
Arpeggiator gate length
0-based
Arp. mode 88 [0–127]
Arpeggiator mode (off/on/hold)
0-based

Filter

Parameter CC Range Usage Description Orientation
Resonance 71 [0–127]
Filter resonance
0-based
Cutoff 74 [0–127]
Filter cutoff/center frequency
0-based
Filter mod. 80 [0–127]
Filter modulation rate & amount
0-based
Space mix 82 [0–127]
Space mixer level
0-based
Delay mix 83 [0–127]
Delay mixer level
0-based
Filter type 87 [0–127]
Filter effect type
0-based
Space decay 91 [0–127]
Space effect decay time
0-based
Space diffuse 92 [0–127]
Space effect diffusion factor
0-based

Envelope

Parameter CC Range Usage Description Orientation
Decay 72 [0–127]
Envelope decay time
0-based
Attack 73 [0–127]
Evelope attack time
0-based
Env. mode 89 [0–127]
Envelope mode (AD/AHD/velocity)
0-based
Env. loop 90 [0–127]
Envelope looping (off/on)
0-based

Model

Parameter CC Range Usage Description Orientation
Space model 85 [0–127]
Space effect model
0-based
Delay model 86 [0–127]
Delay effect model
0-based

Delay

Parameter CC Range Usage Description Orientation
Delay feedback 93 [0–127]
Delay effect feedback level
0-based
Delay length 94 [0–127]
Delay effect delay length level
0-based

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