Yamaha PSR Music Cartridges Beatles Vol2 Eric Clapton Big Band 1 Etc - $285 (Moorhead)

I am cleaning out my parents property some and I got these awesome Cartridges from their place.
My mom is an awesome piano player and played a lot of piano and organ at church event.
She is over 80 now and doesn't play much anymore.
These can be played on Yamaha PSR-320, PSR-420, PSR-520, PSA-620, PSR-330, PSR-330, PSR-530, PSR-630, PSR-730.
They come with the books that they originally came with also.