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 A small barrel organ | |
| Keyboard instrument | |
|---|---|
| Hornbostel–Sachs classification | 412.132 (Aerophones) |
A barrel organ plays music by using turning a barrel, with notes decided by an arrangement of pins. It is very similar to a simple music box where the pins pluck a metal harp. With a barrel organ, the pins in the barrel lift "keys" that open valves that let air from the bellows to play the pipes.
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