I remember, when i was a kid, this lanterna toy. It had a drum with some small pins attached to its surface. The drum was very close to some metals with different length, each one producing a different sound. As the drum rotates, the pins one by one touched the metals, and that is how it played the music. Artist Akko Goldenbel was probably inspired bu such an instrument, and scaled it up! But that's not all. On the surface of the drum, he made a scale model of Eindhoven in The Netherlands! Itís called "Stadsmuziek", which actually means "City Musik". Enjoy!