iTunes Playlist Changer permits you to change the playlist within iTunes without abruptly changing the song currently playing. It also permits you to change song in the middle of hearing another one. You have a crossfadable 'next' and 'previous' button, and a 'stop', 'play', and 'pause' button. You also have the ability to shuffle songs, and we added a floating "mini controller". iTunes Playlist Changer wll crossfade between any 2 songs in your iTunes library.