Tune Sweeper

Sometimes when you accumulate music on your iTunes library or create lots of playlists, you can accidentally duplicate songs in the library and on playlists.

Tune Sweeper is an application that helps you find and delete these duplicated songs so you can select the songs you want to listen to more easily.

It works by scanning your library, and once it finishes, it will show you a full list of your duplicated songs. That way, you can delete the ones you don't want according to the difference in quality, for example.