Hi , this link was given to on psr site in regards to playlist . It is actually on how to import the tyros mf? file into a Genos and turn it into a playlist, but same method apparently works for the sx.

https://www.youtube.com/watch?v=5nB6ntNgJhM
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best wishes
Rikki 🧸

Korg PA5X 88 note
SX900
Band in a Box 2022