Diagram of the front panel of the GS Music Bree6
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GS Music Bree6 MIDI CCs & NRPNs

MIDI implementation details for the GS Music Bree6.

Last update: April 9, 2026 • 51 parameters

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

Oscillator

Parameter CC Range Usage Description Orientation
Oscillator waveform 14 [0–127]
16-31: Saw; 32-47: Pulse; 48-63: Saw + Pulse; 64-79: Sub; 80-95: Saw + Sub; 96-111: Pulse + Sub; 112-127: Saw + Pulse + Sub
Corresponds to waveform switch
Note: Intermediate values snap to lowest valid setting.
0-based
Pulse width 15 [0–127] —
Note: Labelled PW on panel.
0-based
Oscillator level 41 [0–127] — — 0-based
Detune 37 [0–127] —
Applies to oscillator 1 relative to oscillator 2
Centered
Glide time 5 [0–127] —
Note: Portamento Time knob.
0-based
Transpose 43 [16–112]
16~112: -48 to +48 semitones
 — Centered
Pitch bend range 40 [0–127] — — 0-based
LFO to pitch 22 [0–127] — — 0-based
LFO to pulse width modulation 26 [0–127] — — 0-based
Aftertouch to oscillator LFO depth 42 [0–127] — — 0-based
Mod wheel to oscillator LFO depth 39 [0–127] — — 0-based

Filter

Parameter CC Range Usage Orientation
Cutoff 74 [0–127] — 0-based
Resonance 71 [0–127] — 0-based
Envelope 1 to cutoff 89 [0–127] — 0-based
LFO to cutoff 90 [0–127] — 0-based
Mod wheel to cutoff 88 [0–127] — 0-based
Key tracking to cutoff 85 [0–127] — 0-based
Velocity to cutoff 86 [0–127] — 0-based
Aftertouch to cutoff 87 [0–127] — 0-based

Amplifier

Parameter CC Range Usage Orientation
Key tracking to amplifier 93 [0–127] — 0-based
LFO to amplifier 103 [0–127] — 0-based
Velocity to amplifier 94 [0–127] — 0-based

Envelope 1

Parameter CC Range Usage Orientation
Attack 16 [0–127] — 0-based
Decay 17 [0–127] — 0-based
Sustain 18 [0–127] — 0-based
Release 19 [0–127] — 0-based

Envelope 2

Parameter CC Range Usage Orientation
Attack 80 [0–127] — 0-based
Decay 81 [0–127] — 0-based
Sustain 82 [0–127] — 0-based
Release 83 [0–127] — 0-based

LFO

Parameter CC Range Usage Description Orientation
Shape 53 [0–127]
0-15: Triangle; 16-31: Ramp up; 32-47: Ramp down; 48-63: Square; 64-127: Noise / Sample-and-hold
Note: Intermediate values snap to lowest valid setting.
0-based
Rate 76 [0–127]
0~127: 0.10 Hz to 100 Hz
Note: Exponential response curve.
0-based

Effects

Parameter CC Range Usage Description Orientation
Delay time 111 [0–127]
0~127: 7.85 ms to 1000 ms
 — 0-based
Delay feedback 112 [0–127] — — 0-based
Delay mix 12 [0–127] — — 0-based
Chorus amount 13 [0–127] —
Note: Mapped to FX2 (Chorus) on panel.
0-based

Performance

Parameter CC Range Usage Description Orientation
Modulation 1 [0–127] —
Affects mod matrix or LFO depth
0-based
Output volume 7 [0–127] — — 0-based
Expression 11 [0–127] — — 0-based
Sustain pedal 64 [0–127] —
Affects envelope release stage
0-based
Voice mode 36 [0–127]
0-31: Poly Stereo; 32-63: Poly; 64-95: Mono; 96-127: Unison
Note: Intermediate values snap to lowest valid setting.
0-based
Unison interval 35 [52–76]
52~76: -12 to +12 semitones
Interval between voices in unison mode
Centered

MPE

Parameter CC Range Usage Orientation
Y-axis to filter 50 [0–127] — 0-based
Y-axis to amplifier 51 [0–127] — 0-based
Pressure to amplifier 52 [0–127] — 0-based
Pressure to filter 55 [0–127] — 0-based

MIDI

Parameter CC Range Usage Description Orientation
Bank select MSB 0 [0–3]
0: Banks 1-2; 1: Banks 3-4; 2: Banks 5-6; 3: Banks 7-8
Note: Use with Program Change. LSB (CC 32) is ignored.
0-based
All sound off 120 [0–127] — — 0-based
Reset all controllers 121 [0–127] — — 0-based
Local control 122 [0–127]
0: Off; 127: On
 — 0-based
All notes off 123 [0–127] — — 0-based

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