As one of the oldest instruments in the world, a pipe organ produces sound by blowing pressurized air through a group of pipes controlled by keyboards. Pipe organs can be either wood or metal and are most commonly found in places of worship, private homes, and theaters.
There are four basic parts to every pipe organ. The pipes, which produce the sound can be as little as an inch long or as big as thirty two feet long. The stop, foot pedal, and keyboard are all contained on the console. The mechanism in charge of air flow, connecting the keyboard and the pipes is called the action. The last part to an organ is the wind generator. The wind generator is responsible for supplying air to all of the pipes.
The earliest form of a pipe organ dates all the way back to 3 B.C. In Alexandria, Egypt, Ctesibius, a Greek engineer, invented the very first ancestor to the pipe organ called the hydraulis. The hydraulis created sound when water pressure pushed air into the pipes. Cicero was the first Roman writer to write about an organ, comparing it to the most exquisite food and most sensuous feeling one can have.

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