The Saxophone Play-Along® Series will help you play your favorite songs quickly and easily. Just follow the notation, listen to the audio tracks to hear how the saxophone should sound, and then play-along using the separate backing tracks. The online audio is available for download or streaming using the unique access code printed in the inside cover and features PLAYBACK+. a multi-functional audio player that allows you to slow down audio without changing pitch, set loop points, change keys, and pan left or right – available exclusively from Hal Leonard.