Free reed aerophone
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A free reed aerophone is a musical instrument that produces sound as air flows past a vibrating reed in a frame. Air pressure is typically generated by breath or with a bellows. In the Hornbostel–Sach
The reeds of an early 20th-century button accordion, with closeup
Sheng with 17 pipes; height is 55 cm (22 inches)
Free reed from a melodion, 1867
Concertina
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A concertina is a free-reed musical instrument, like the various accordions and the harmonica. It consists of expanding and contracting bellows, with buttons usually on both ends, unlike accordion but
Free reed aerophone
…The accordion, patented in 1829 by Armenian-Austrian inventor Cyrill Demian. The concertina, patented in two forms (perhaps independently) by: Sir Charles Wheatstone, in 1829 and 1844; Carl Friedrich Uhlig, 1834. The harmoneon, patented in…
Wheatstone English concertina, produced c. 1920
English concertina disassembled, showing bellows, reedpan and buttons
Hayden Duet Concertina
Chemnitzer concertina made by Star Mfg., Cicero, Illinois, USA in 2000