Tunes offers two fundamental types of playlists. The manual playlist, which this article will cover, allows you to manually create your custom mixes however you wish. The “smart” playlist, featured in our next iPod 101 segment, is automatically generated from criteria you specify. These may include genre restrictions, ratings, keywords, date added, the number of times a track has been played, and more. Read more from the following link.
//http://www.ilounge.com/index.php/articles/comments/how-to-create-playlists-in-itunes//