Sysex control of MB's modulation matrix

vocemur · December 4, 2025, 3:33pm

I see MIDI parameters for assignment values, but I don’t know how to toggle on/off the matrix assignments. For example, I can adjust MIDI CC #23 which would be the Steiner Filter cutoff. But how do I use MIDI to make the assignment in the mod matrix for LFO2 to adjust that parameter? (The equivalent of toggling one of the buttons while (MOD) is lit.) Also, how would I adjust the “amount of impact” of the mod matrix assignment? (The equivalent of turning the MOD value wheel when one of the mod buttons is lit purple.)

is their a list of modulation values for this like shown on this page? Here is a list of 80 functions which can be modulated through MIDI parameters.

github.com

woodenplastic/MidiDeviceDefinitions/blob/401574ad216c2d00f1d6423cdf638a38a0dfa81a/Arturia/Matrixbrute.csv

Arturia,Matrixbrute,Performance,Sustain Pedal,Controls sustain pedal function,64,,0,127,,,,,0-based,,0-63: Off; 64-127: On
Arturia,Matrixbrute,Expression,Expression Pedal 1,Controls assignable expression pedal 1,3,,0,127,,,,,0-based,,0-127: Expression amount
Arturia,Matrixbrute,Expression,Expression Pedal 2,Controls assignable expression pedal 2,4,,0,127,,,,,0-based,,0-127: Expression amount
Arturia,Matrixbrute,VCO1,Fine,Fine-tunes VCO1 frequency,65,,0,127,,,,,0-based,,0-127: Fine tuning amount
Arturia,Matrixbrute,VCO1,Coarse,Coarse-tunes VCO1 frequency,66,,0,127,,,,,0-based,,0-127: Coarse tuning amount
Arturia,Matrixbrute,VCO1,Waveform Select,Selects VCO1 waveform,67,,0,127,,,,,0-based,,0-127: Waveform selection
Arturia,Matrixbrute,VCO1,Sub,Controls VCO1 sub-oscillator level,9,,0,127,,,,,0-based,,0-127: Sub level
Arturia,Matrixbrute,VCO1,Ultrasaw,Controls VCO1 ultrasaw amount,668,,0,127,,,,,0-based,,0-127: Ultrasaw amount
Arturia,Matrixbrute,VCO1,Sawtooth,Controls VCO1 sawtooth wave level,10,,0,127,,,,,0-based,,0-127: Sawtooth level
Arturia,Matrixbrute,VCO1,Square,Controls VCO1 square wave level,12,,0,127,,,,,0-based,,0-127: Square level
Arturia,Matrixbrute,VCO1,Triangle,Controls VCO1 triangle wave level,13,,0,127,,,,,0-based,,0-127: Triangle level
Arturia,Matrixbrute,VCO1,Pulse Width,Controls VCO1 pulse width,69,,0,127,,,,,0-based,,0-127: Pulse width
Arturia,Matrixbrute,VCO1,Metalizer,Controls VCO1 metalizer amount,10,,0,127,,,,,0-based,,0-127: Metalizer amount
Arturia,Matrixbrute,VCO2,Fine,Fine-tunes VCO2 frequency,71,,0,127,,,,,0-based,,0-127: Fine tuning amount
Arturia,Matrixbrute,VCO2,Coarse,Coarse-tunes VCO2 frequency,72,,0,127,,,,,0-based,,0-127: Coarse tuning amount
Arturia,Matrixbrute,VCO2,Waveform Select,Selects VCO2 waveform,73,,0,127,,,,,0-based,,0-127: Waveform selection
Arturia,Matrixbrute,VCO2,Sub,Controls VCO2 sub-oscillator level,14,,0,127,,,,,0-based,,0-127: Sub level
Arturia,Matrixbrute,VCO2,Ultrasaw,Controls VCO2 ultrasaw amount,74,,0,127,,,,,0-based,,0-127: Ultrasaw amount
Arturia,Matrixbrute,VCO2,Sawtooth,Controls VCO2 sawtooth wave level,15,,0,127,,,,,0-based,,0-127: Sawtooth level
Arturia,Matrixbrute,VCO2,Square,Controls VCO2 square wave level,16,,0,127,,,,,0-based,,0-127: Square level

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DrJustice · December 4, 2025, 4:05pm

There is no external MIDI control of the mod matrix.

As you hint at it could’ve been done using Sysex, or even NRPN, but not via CC. In any case, it’s not implemented.

Sysex control of MB's modulation matrix

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