8 songs from the smash movie musical featuring the hits of ABBA with backing and demonstration tracks. The tracks can be 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. Songs include : Dancing Queen • Gimme! Gimme! Gimme! (A Man After Midnight) • Honey, Honey • Lay All Your Love on Me • Mamma Mia • SOS • Take a Chance on Me • The Winner Takes It All.