From Wide Angle Software:
Tune Sweeper is an essential iTunes clean-up program that will find and remove duplicate tracks in iTunes library, as well as locate and fix incorrect track info and download missing song artwork. Tune Sweeper scans iTunes for duplicate tracks based on your preferred search criteria, such as matching track names, artist, and album. It will then choose one version to keep (based on your preference: Highest Quality, Last Played, Longest length) and the unwanted files will be marked for removal. All you need do then is simply confirm the files you wish to keep, then all the unwanted duplicates will be quickly removed. Optionally, the music files are moved to your PC's Recycle Bin - so they can be restored should you change your mind.
Tune Sweeper can also make your iTunes using experience run a lot smoother with the ability to find and delete missing tracks in iTunes. A missing track is one of those which is listed in your library but the file is actually missing from your hard drive. With Tune Sweeper you can safely remove these tracks and avoid those 'file missing' errors when syncing your iPhone, iPod or iPad. Additionally, the software will also quickly discover tracks on your hard drive which are not in iTunes and add them to iTunes.
Version 4 of Tune Sweeper will also identify tracks with missing details and quickly fill in the blanks. Tune Sweeper uses advanced digital fingerprinting technology to identify your music and download the correct track information to iTunes automatically. Additionally, Tune Sweeper 4 scans your iTunes library for tracks with no album artwork and automatically downloads new artwork to iTunes.
The latest addition to Tune Sweeper 4 feature set is the ability to identify tracks from Apple Music, making it easy to see which songs will vanish from iTunes if you cancel your Apple Music subscription.
For a bit of fun, Tune Sweeper will also summarize your most listened to Artists and Genres in iTunes. You may be surprised what Tune Sweeper can tell you about your listening habits. Tune Sweeper will make using your iTunes library experience a much more enjoyable one and will save you valuable disk space on your computer. The program is available in English, French, German, Spanish and Japanese languages. It is updated regularly to enhance the feature set and the product updates as well as friendly customer support are provided free of charge.