A free reed is the mechanism by which accordions, concertinas, harmonicas, pump organs, and related instruments produce their sound. It is a strip of material, typically brass or steel, which is fixed at one end in a column, and vibrates when air is forced across it.
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| - A free reed is the mechanism by which accordions, concertinas, harmonicas, pump organs, and related instruments produce their sound. It is a strip of material, typically brass or steel, which is fixed at one end in a column, and vibrates when air is forced across it.
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| - A free reed is the mechanism by which accordions, concertinas, harmonicas, pump organs, and related instruments produce their sound. It is a strip of material, typically brass or steel, which is fixed at one end in a column, and vibrates when air is forced across it.
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