(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 eight classic songs. The CD contains demos for listening and separate backing tracks so you can sing along. The CD is 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 songs: Dancing Queen * Honey, Honey * I Have a Dream * Mamma Mia * Slipping Through My Fingers * Super Trooper * Take a Chance on Me * The Winner Takes It All.