Role added by library_ocean on January 10, 2024
A harmonium, also called a "reed organ" or "pump organ", is a type of free-reed organ that generates sound as air flows past a vibrating piece of thin metal in a frame. The piece of metal is called a reed. Specific types of pump organ include the American reed organ, the Indian harmonium, the physharmonica, and the seraphine.[1] The idea for the free reed was derived from the Chinese sheng through Russia after 1750, and the first Western free-reed instrument was made in 1780 in Denmark.
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Harmonium
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