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Tune Instructor Brings Advanced ID3 Editing to Your Mac
Posted by Adam Pash at 6:30 AM on September 3, 2008
Mac OS X only: Free application Tune Instructor adds advanced ID3 tag editing for your iTunes library through a smart third-party utility. The iTunes helper boasts features like search and replace for your tags, or it can set ID3 tags from a filename or set filenames from ID3 tags. It can automatically search and embed album art or lyrics—though I ran into issues with German-language lyrics sometimes showing up rather than English. The application has a lot of potential, and works well overall. I did run into a few peculiarities when testing it, but overall it offers advanced, worthwhile ID3 editing beyond what iTunes offers by default. Tune Instructor is freeware, Mac OS X only.

Windows only: Music application TuneUp scans your iTunes library to fill in and clean up your music's metadata, including album art. After you install it, just point it at songs in your library you want to clean up; TuneUp fingerprints and analyzes them and then provides a diagnostic overview of your missing or incorrect metadata. You can then verify and clean up all your metadata with the stroke of a button. In theory it's very similar to 
Windows only: Freeware application MP3-Check examines your music library to weed out files that are missing important metadata or those that don't match certain criteria. iTunes
Blogger Dennis Best, who previously schooled us about the 
With the popularity of sites like del.icio.us and YouTube, tagging has become (for better or sometimes worse) a standard feature of nearly every site on the internet, and virtually everyone has a pretty fair idea what tagging is and how to use tags online. But the latest operating systems from Apple and Microsoft also have tagging built into their filesystems, meaning that the same basic tagging ideas available online are also available for the files on your hard drive. It sounds like an excellent idea in theory, but it doesn't seem as though offline tagging is taking hold. So we're wondering: