If they're "unattached" in old carplayer parlence, then they will have refs=0. They are in the soup, and you can play them with search on the carplayer, but they don't exist in any playlist at all.

The odd thing is the particular songs are in at least 2 other playlists, besides the album they are under they also appear in my 'new' playlist and 'favorites'. I would think that a min. of 2 references would be attached to them.

OK I guess the songs were not in another playlist it was another version of the same song that was in other playlists.
So I take it if it's referenced=0 then it's only in one playlist the original playlist.