Randomizer in the H90 App. With a few different options such as randomize all – also include options for less dramatic results. For example just randomize parameters on Preset A and ignore B.
+1
Since I started using preset randomizations on Roland MC 707, I’ve never got back to the regular presets. It was quite the same with Gladiator soft synth from tone2. Cautious with the volume and distortion parameters of course. Might not work with all effects either.
As a safe start, shuffling the parameters for the selected effects would be really cool.
