INTRODUCING sub-playlists

[scfagin]

Let me explain by an example. Say I have a Workout Playlist (the main playlist). I want to sub-divide into the sub-playlist Rock Workout, the sub-playlist Rap Workout, etc. Some days I am more picky about my workout music (sub-playlist), while other days I can listen to anything on my Workout Playlist (main playlist). If a song is added to a sub-playlist, it automatically is added to the main playlist.