Hi, I don't know if anyone has already tried this?. Still, I want to point this out to you. I have the Genos Bonus Playlist on my USB in one Map (*.rgt files). It is surprising that a lot of songs from this playlist works great on the SX900. Here and there, maybe some adjustments to make and you can make a great playlist for the SX for yourself.
PS. you can download the Bonus Playlist for the Genos from the Yam.site.