PA 500 has a full blown seq like a work station and sound editing(exept combi mode).
But for western(US and UK based music) styles (simple 3/4,4/4,6/8): Yam's preprogrammed styles are simpler and fills are smoother.
PA can do the exact thing if you edit(fills etc).
[This message has been edited by jamman (edited 02-09-2008).]