That's what I used to generate my 2,000 track playlist. I've listened to it and added what I liked to playlists, but that leaves about 1,600 unreferenced. What I'm after is a query that will produce a result containing only tracks where *all* of the tracks in an album are unreferenced. I don't like partially deleting albums, but this result would produce entire albums which can be erased.... does that make sense?