Kids will love playing fun tunes on the detachable music player as they follow along with the stories about their favorite Disney Junior characters. This book contains three stories -- each one featuring either Doc McStuffins, Sofia the First, or Minnie Mouse! The three music discs play a total of 16 tunes. Prompts throughout the book tell kids when to play each tune as they read. For added fun, kids can take the music player wherever they travel to listen to their favorite tunes independently.