(Pro Vocal). Whether you"re a karaoke singer or preparing for an audition, the Pro Vocal series is for you. The book contains the lyrics, melody, and chord symbols for hit songs. The CD contains demos for listening and separate backing tracks so you can sing along. The CD is playable on any CD, and also enhanced so PC & Mac users can adjust the recording to any pitch without changing the tempo! Perfect for home rehearsal, parties, auditions, corporate events, and gigs without a backup band. This volume includes 8 favorites from the megahit musical: Dancing Through Life * Defying Gravity * For Good * I"m Not That Girl * One Short Day * Popular * What Is This Feeling? * The Wizard and I.