(Fast Track Music Instruction). A supplement to the FastTrack instruction books, this great songbook/online audio pack features 8 great songs in rock score format: Brown Eyed Girl * Great Balls of Fire * I Want to Hold Your Hand * Oh, Pretty Woman * Wild Thing * Wonderful Tonight * You Really Got Me * Your Song. 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.