musocity,
apples vs oranges. Ujam groove patterns ARE mapped to specific key switches and they are "shorts". They were manually curated. Randomization is a very manual process in Ujam products. We are talking about complete multi instrumental segments here. People (at least most I know) who use physical arrangers for backing, have no interest in deep programming. They want to style to just play and be the best it can be. I am not saying this is not possible with BIAB content, I am saying it will be a very manual process of creating such styles with the best takes for specific parts. Not only these specialized styles have to be made, a very user friendly editor has to be in place, specifically designed to alter styles (grooves, instruments, volume, FX etc.) But the main thing, if one day it will be considered, it should have strong feedback from people who professionally use arranger keyboards. Keeping in check THEIR needs (not mine or yours).

I don't wake up in the middle of the night by "revelations" you are describing. I maintain that pre-requisite to any significant additions should start with addressing current issues, unfinished features, redundancy check and focus on workflow. From the Poll thread, it is clearly evident that most folks want exactly that. At least for now.