From the Glossy Page Blog

The music collection that you built took you a long time to build it. You have a lot of songs in it, and you are proud of the collection that you build. The only issue that you have is that you need to clean up your collection. You decide to go online where you can search for ways to organize and get rid of the duplicates that you have. The software that you choose to get for your collection is the iTunes Duplicate Remover.