I, like many users it seems, organize my music library through folders. My primary desktop music player/organizer, MediaMonkey, has an excellent feature where you can display all the songs contained below a folder, even if those songs are not directly contained in that folder. For example: My first folder level is sorted by gene, and after that by artist, after that by album. I would like to be able to play all the songs in my electronic genre folder, (not possible by using the library genre sort, as I have 20+ subgenre's of electronic music) instead of only being able to play one album