(Fast Track Music Instruction). Fast Track is different from other instruction methods because it''s user-friendly with plenty of cool songs that make it easy and fun for players to teach themselves. Plus, the last section of all the Fast Track instruction books feature the same songs so that players can form a band and jam together. The songbooks are all compatible and feature eight hit songs. All packs include great play-along audio tracks with professional-sounding orchestrations. This pack also includes a harmonica so you have everything you need to start playing right away! Audio is accessed online using the unique code inside the book and can be streamed or downloaded. The audio files include 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.