I’ve found satisfaction in simply choosing several “noises” I like, then finding interesting ways to patch the instruments together. An example being running a drum machine (with sound at zero, or varying the level depending on how I’ve maligned the drum sounds) midi patched to a digital keyboard (with sound level variancies during performance) which in turn has a volume output patched into a CV clock arpeggiator on an analog keyboard. Keeping the tempo static keeps a level of “familiarity” for the listener while shifting the volume level on the digital keyboard “randomly” affects what the analog board is playing, making for some interesting “music”. That’s just one example. I also highly recommend “circuit bending” instruments and mixing/patching them into analog equipment for some interesting results.