When you first open Kristinworks' Holiday Radio, it will start with a random selection. If you just let it play it will continue to play randomly through the playlist. The large round button will pause or restart play. The two smaller round buttons will skip to the next track on the playlist or go back one. The slider just above the playlist is a volume control. You can scroll through the playlist using the scroll bar or up and down buttons on the right side and select any track by double clicking it. Enjoy!