First up, your build's got some problems. That A-135-1 is outside the span of the rails. Plus, if this is a 3U Rackbrute cab, you need to put the Arturia power supply in there because you'll lose 5 hp from that necessary module.
Once those are corrected, my first suggestion would be to move to a 6U Rackbrute, at least while you're sorting out things on MG. Not only is it a good idea to "build big" then pare things down, generative music tends to require quite a bit more than you have here. For example, there's NO modulation sources here (Disting notwithstanding)...and modulation sources are essential to creating the internal variation that generative composition requires to sound effective. I also don't see anything that would deal with variations in timing, such as trigger/gate delays, logic, randomization. There's no random signal source (also pretty necessary in generative music).
My suggestion, ultimately, is that you should probably try and explore generative patch architecture before you jump into the cash outlay on a physical modular. If you haven't already, download a copy of VCV Rack (at https://vcvrack.com/) and load it up with all the free module packs. Then start in there...NOT with a physical device, at least, not until you've got a clearer picture of what a self-regulating generative patch requires in terms of hardware to make it work. Trying to create something of this sort without some adequate research will probably only result in an expensive device that generates more frustration than music. Then bring what you've learned back over to MG, whip up a 6U Rackbrute, and start.