A similar approach (effectively node based, generative music)

https://nodalmusic.com/

I used to play with an earlier version of Nodal, great for someone that has an ear for music but no formal training. Also, Brian Eno.

One interesting method I have learnt over the years is to use logistic map function to create some random notes:

https://glicol.org/demo#chaos

It is possible to do part of that in Bitwig as well, lots of ways to have probabilistic triggering of notes and patterns that trigger others.

Website could do with a demo. I'm not gonna rush to steam and buy.