The music box SLIGHTLY WINDY uses this movement to animate the barley. It translates the lightness of nature being lulled by wind and music. Created by Jose Ferrufino of l'ECAL (Ecole Cantonal d'Art de Lausane) .. this is how the music box works: the motor gives movement to the cylinder, the pins on the cylinder hit the blades of the keyboard and it this action that creates the melody.
You can read more about here http://www.joseferrufino.com/index.php?/projects
This post via http://djdelphinus.blogspot.com/