The narration directly references the “Sorcerer’s Apprentice” segment from Walt Disney’s 1940 animated film Fantasia. The sorcerer Yen Sid tasks his new apprentice, the player, with animating the worlds he has created. Players generate life in initially desolate levels by moving in rhythm with licensed popular and classical music, which unlocks gestures that change elements of the musical composition. In an example, a player traced arrows with her body in time with a song, and was rewarded with a selection of rock, orchestral, and brass music overlays that fit over the song. The Kinect’s camera shows the player as an on-screen silhouette, which transforms other objects when the two touch. The game is able to read nuance in the player’s body movements and change the visual animations accordingly.