hey towers, everytime i do a new rom or whatever, i always have to split my playlists back up with astro, but the files sometimes can be in the wrong folders, it also depends on the file name and extension, for some reason the mp3's are not always mp3's like they should be, like wav or mp4's, especially like free music you get from the various apps for free music, from random sources, sometimes they get moved to a folder under a music app, and you just have to move them into a consolidated file under "music" or whatever you nominate...
hope this helps, but im not so sure i understood the question... oh well i hope this helps someone.