1. A method for audio content creation, comprising: defining a plurality of three-dimensional collision volumes, the plurality of three-dimensional collision zones being at least partially different three-dimensional spaces; assigning a base track of music to each of the plurality of three-dimensional collision volumes; playing audio content; automatically tracking movement of a user, including automatically detecting predefined motion of the user in one or more of the plurality of collision volumes; and automatically changing the audio content upon entry of a body part into one or more of the collision volumes, the change in the audio content being based on which collision volume or volumes are entered by a body part and what predefined motions are performed within the one or more collision volumes.