Could we have some more variations on piano waltzes please ? Some slower tempo styles would be wonderful too. I know you can adapt tempos but you can't beat a style that was made for a particulr tempo. Many Celtic airs for example have tempos well below 85. Quite often I find an accoustic guitar is too harsh for a slow tune. Last night I played at an accordion club with about 150 folk there. A couple of the sets I played were made using biab. My expander can take MP files so I used a simple backing of Piano waltz & dreamy electric guitar. A number of people including other accordionists were asking how I got the beautiful piano backing.
So, more easy listening piano syles PLEASE and more variations on existing ones

If you're talking Even feel waltzes here, then definitely a +1 from me!