Hi,
As I have writen in another reply, you may buy a USB styles CDROM with 7.000 or more styles converted from all arrangers for your Roland.
Go to: www.usb-styles.com.fr

I don't know what quality these styles are. But I think they are good ones, because you pay US $120. It is money, ok, but you don't need to ask for, convert and download...7000 styles!!!

Godwald