Go to the PSR-Tutorial site and click on the styles tab. More styles than anyone can imagine, and many from older keyboards. Most, but not all of the older styles will play quite well, and sometimes better, in the newer PSR and Tyros boards. The exception to this is the 5700, which was a completely different format.
Good Luck,
Gary

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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)