(Instrumental Play-Along). Now solo instrumentalists can jam along with a dozen of today's hottest hits! These books include access to professionally-recorded accompaniment tracks so you can sound like a pro while playing! Songs include: Ho Hey (The Lumineers) * Home (Phillip Phillips) * I Knew You Were Trouble (Taylor Swift) * Live While We're Young (One Direction) * Skyfall (Adele) * Some Nights (fun.) * When I Was Your Man (Bruno Mars) * and more. The audio is accessed online using the unique code inside each 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.