Although you might not be aware of it, you use tags every time you use iTunes. "Tags" are bits of information about the song you're playing or the video you're watching. Sometimes referred to as "metadata" (data about data), tags associated with the music or video file include the song or movie's name, artists or actors, genre, album name, and more. Without tags your iTunes Library would be nothing more than a list of filenames that can sometimes be unintelligible. Understanding and using tags is the key to controlling your iTunes content.
This is the first article in a regular column that will be devoted to iTunes. In this one, I'll explain how to use tags to make iTunes organize, sort, and sync your iTunes content the way you want it to.