Pianist2 is very welcome. I use it all the time and it seldom freaks out the chord recognition even with almost no attention paid to giving the chord recognition a better chance. There’s a natural tendency to use the sustain for ‘extra stuff’ and a tendency to lift at chord boundaries anyway, so all in all I can often completely turn off my awareness that I am triggering and controlling the backing and just ‘play’ and the accompaniment just takes care of itself..!

Tied to the Dynamic Arranger feature on the BK9 (does the FP-E50 mention that in the manual?) which brings up or down the velocities of Parts in response to your dynamics, I have had some of the most blissful times almost disbelieving how the accompaniment seems to be really ‘listening’ to me!

Even with only two variations, if Roland brought all this to the party, they may have a winner on their hands. It may not impress many traditional arranger players, who really play quite minimally, but to a proper pianist it may do quite nicely. And all that Zen-core stuff may tip the balance for forward thinking players…