How to make folders to seperate my music?

Go all the way to the end of the Music choices–past Album, Artist, etc., until you see Folders. Then you will see your folders.

For the other lists (Album, Artist, etc.) the Sansa sorts by ID3 tags. They’re useful. You can read about them at this link:

http://forums.sandisk.com/sansa/board/message?board.id=announcements&thread.id=201&view=by\_date\_ascending&page=1