It's worse than that. These are audio files. If your specific chord progression was recorded by a live player on my Kurzweil PC3 those transitions would be good because of both the patch on the Kurz and the technique used by the player.

Now, shift that to Biab. How could this possibly be done properly when the person who recorded those tracks has no idea what chords you are going to use? This is exactly the same problem with any RT piano with sustained chords. A real pianist is using the sustain pedal to handle those transitions. But, that pedaling technique required the player to actually know and understand the chords as he's playing them. That's impossible in the studio because Miles Black or anybody else is only playing what's he's playing. If you happened to pick a chord progression that he played then the transitions will sound good because they're in the original RT studio recording. Otherwise you're going from one chord to another that was not recorded sequentially so the transition must be chopped. No other way.

The only way to do this is to have the RT players play every possible chord sequence there is using all possible chord voicings in order to cover every user's potential chords. Mathematically it's possible I guess with a 3 TB hard drive for just one RT.

Bob

Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.