Solo instrumentalists will love this collection of 15 of today's hottest hits. The collection includes a full-accompaniment play-along recordings with tempo adjustment software so you can sound just like a pro, and adjust the tempo without changing pitch. Songs include: Breakeven / Fireflies / Halo / Hey, Soul Sister / I Gotta Feeling / I'm Yours / Need You Now / Poker Face / Viva La Vida / You Belong with Me / 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.