I'm still learning a lot about synths, and here're some notes on Matrixbrute things (that are probably obvious to people more experienced).
The Matrixbrute can use an instrument as input, effectively using that as an oscillator, which you can then apply filters to. To do so:
Found this thread with some more detail: https://forum.arturia.com/index.php?topic=90942.0
This guy shows and explains how to do it really clearly, includes lots of mod matrix uee:
The sequencer (and the related arpeggiator) on this thing are amazing. My next project for this page is to write more about them.
Arturia have software for changing settings, saving and loading patches, and updating firmware, called MIDI Control Centre. It runs well enough that I can change settings and send and receive patches 1) in Wine, but have had no luck updating the firmware. A bit frustrating, because firmware version 2 would allow me to change more settings without having to connect it to my PC.