Hi Zuki,

Some links for you

Manuals and song list plus other bits.
https://usa.yamaha.com/products/musical_...ml#product-tabs

Free audio packs
https://usa.yamaha.com/products/musical_...ml#product-tabs

My style library. ( basically missing styles from psr3000 and up, duplicates removed) Have to be a member psr tutorial Ithink to be able to download
https://psrtutorial.com/sty/yamaha/psr-sx900.html
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best wishes
Rikki 🧸

Korg PA5X 88 note
SX900
Band in a Box 2022