As I was saying. I've been working w/ the yamaha S900 and like the style play buttons as they seem are easier to navigate. (only have to tap the main variation for a fill and it seems to have pretty realistic sounds (quite an improvement from past years). I had to have the Korg PA800 repaired(under warranty) and haven't really gotten around to it again yet. The vocal harmony I use is the Digitech Studio Vocalist EX. (rather dated now).