Nobby,
There is a style on the 510 with which I used to play "Bo Diddly", "Not Fade Away" and "Who Do You Love?". I think it was called Rock and Roll but I'm not certain. I've never heard this beat on any of the other keyboards. I would love to have it converted, but as far as I know, nobody has been able to convert 500 or 510 styles. They were made before Yamahas Stylefile format came along.
The 510 also has some other great styles that fit specific songs. I remember one for "Lyin' Eyes" by the Eagles, of course "My Way" and a few others. It's a great little keyboard that was ahead of it's time in many ways.
DonM