Violin Play Along 01 Bluegrass - Book & CD. This book will help you play your favorite songs quickly and easily. Just follow the music, Listen to the CD to hear how the violin should sound, and then play along using the separate backing tracks. The audio CD is playable on an CD player, For PC and MAC computer users, the CD is enhanced so you can adjust the recording to any tempo without changing pitch. Songs: Foggy Mountain Breakdown, Gold Rush, Orange Blossom Specials, Salty Dog Blues and More