Hi Dennis,
again I'd be at a bit of a loss as to what styles to use.

I might need to go thru some of my old sheet music.
I'm more into the standards, 50's 40's 30's.
Stuff before I was born haahaa (well almost).
The time signature changes I may need to do via a medley, I'm still trying to avoid having to do too much in the way of actual style editing just in case it doesn't work.
I'm 99% sure that it is playing back a
3/4 v1, 4/4v2 , 5/4v3 variations all in the one style, and doing it correctly.

Also need to work out if having fixed different tempo's in each of the variations will work in a medley.

I was able to do it in One Man Band software, be interesting to see if it works just as well in the PA800. I created a 3/4 variation out of 4/4 psr piano style variation & used both in the same style.
Worked perfectly in OMB, but not in the psr.
If I can find it, I may try converting it, at least then I should be able to tell for sure.

thanks for the suggestion Dennis.

best wishes
Rikki