It consists of the Track Timer, an AppleScript that interfaces with iTunes, and provides a way to specify and play any number of iTunes tracks. Track Timer Plus also includes the scheduling application Script Timer. You provide Track Timer with a play list of music, audio streams, or both and the single track or multiple tracks you want to hear in any order, and it takes care of controlling iTunes. You can even ask for a random track or tell Track Timer to instruct iTunes to shuffle the whole play list. You can schedule any number of play lists at any number of times, and you can specify a different sound volume for each play.