Kids can learn to play and sing the favorite songs of Ponyville. This fun book includes a play-along piano that lights up to lead children through familiar songs. Children will love being able to choose between three unique settings. They can follow the notes as they light up on the piano, create their own music, or choose the playback feature and enjoy their favorite children’s songs with My Little Pony Tiwst. A pony-ful, magical, musical good time. The battery is replaceable. The product has been available since November 2005.