Get either of these scripts.
This will create a text file that will list the iTunes Library tracks which have not been assigned to any playlist.
This searches your iTunes or iPod Library for tracks which have not been included in any Playlists and copies them to a new discrete Playlist
The first script downloads with a circle and line through the script. So nothing. It must have been taken off, because developer has included it in the package of the second script for $2.
The second script is part of a $2 package but has a comment saying it does not work with OSX 10.7.4 which is what I am running.
Any other thoughts?