This pack lets you play guitar or sing along with the CD backing tracks and the matching music book. In the music book are Lyrics, Music and Chords, you can learn the Guitar part from the Tab or Standard notation. What you get in the pack.. On the CD are two specially recorded "soundalike" backing tracks of each song. Track 1. is a full demo with Guitar and a backing for vocals. Track 2 is a backing track without Guitar, both versions are without vocals.