You really have to play a Korg to hear this. It sounds great and is one of the reasons I went to Korg. It makes a style much less boring and more authentic.
I'd prefer that the instrument didn't do the choosing. That's why I would disable it.
I'd rather play the variations myself...more control.
Plus, I wouldn't want an accompaniment that wouldn't recognize
rootless voicings.
Roland has still not caught up with the rest and implemented this very important feature....and yes, Korg and Yamaha
both have it (so do Ketron).
Ian