This book contains a collection of 200 chord progressions over which youcan practice your latest and greatest licks, and the USB flash drive in cludes audio demos of every single one. The audio tracks range from approximately one minute (for the short progressions) to four minutes or more (for the full-length “song” progressions), and numerous styles, keys, and tempos are covered to make sure you're well-versed in practically every style. Rest assured, you'll get plenty of time to milk your melodies for all they're worth! Whether you're a rocker, a jazzer, abluesman, or a bluegrasser, the Big Book of Backing Tracks has p lenty for you. In addition to the USB flash drive, the book also includes access to audio files online."