Abstract: A music box structure with composing function comprises primarily a comb reed composed of teeth which are tuned to play various musical notes, a motor-driven cylinder, and a plurality of pins, wherein on a surface of the cylinder are disposed a plurality of spaced jack holes corresponding to the teeth of the comb reed. When in use, a user may insert pins into various jack holes on the cylinder according to various music scores or the user's own composition with the inserted pins having an appropriate protrusion height. When the cylinder is driven to rotate by the motor, the inserted pins pluck the teeth at various positions on the comb reed in order and produce music.

Abstract: Apparatus and method for rotating an object using a music box mechanism having a spring motor. Apparatus includes a mechanical motor having a spring coupled between a body and a shaft of the music box where the shaft and the body are mounted for rotation relative to each other. The spring is windable by a user to store mechanical potential energy and when released, unwindable to release the stored energy and cause relative rotation between the body and the shaft. A base adapted for stationary placement against a surface such as a table or desktop or a wall or other stationary surface is fixedly coupled to or integrally formed with the shaft of the music box motor. An object such as a spherical planetary object or globe or any other object is connected to the body and includes an aperture or hole through which the base extends to the shaft. This aperture permits the object to rotate about the shaft without interference so that the body and the object rotate about the shaft as the spring unwinds.