Wouldn't that mean that you would have to prepare each different song beforehand and save the same style for every differnet song? Kinda like a midi file. YOu already have that capability.

With what I propose, (now if it is feasible or not is another matter, but no technical problem remains unsolved) you would have complete control of the "next chord", on the fly, and some nights, you could play tha same song but substituting some chords, just for variety.