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The scroll-reading component of the player-piano musical automaton. The motor that pulls the scroll through the machine is made from an old electic-powered ice-cream maker. The scroll itself has holes cut out of it in a pattern. Copper fingers rest against the paper of the scroll under the tension of small springs. When a hole in the scroll rolls past the copper finger, a contact is made with another copper point beneath the paper, sending a signal that rings a bell or plucks a spring.

2001

player-piano automaton