This is the holy grail for Yamaha arranger users. Search for threads titled "Oriental Pack" or "Armenian Raggae 6/8." Many users have uploaded custom packs specifically for the S550.
The small, windowless studio in Yerevan smelled of stale coffee and warm vacuum tubes. Levon sat hunched over his aging Yamaha PSR-S550 Free Download Styles Yamaha Psr S550 Armenian 6 8l