During a visit to the (incredible) new Exploratorium in San Francisco, I was captivated by Carson "Kit" Davidson's "One Hundred Watts 120 Volts," a 1972 short film where the manufacturing of Duro-Test light bulb is presented as a ballet for Bach's Brandenburg concertos. "One Hundred Watts 120 Volts" (Archive.org)
One Hundred Watts, 120 Volts: a lightbulb manufacturing ballet (1972)
http://www.youtube.com/watch?v=d9z0tjXuoNU