Code driving the Menagerie Mechanique,an art project brought to Burning Man in 2012.
It consisted of 10 free standing frames holding a musical instrument, each with a solenoid to strike it, and controlled by an ATmega168.
It also controlled lights to display bar and beat and read a piezoelectric pad that people could tap to cause the solenoid to strike.
These interactions were recorded and played back in time, creating a life sized sequencer. (project photos)