
Pump organ
The pump organ, reed organ, harmonium, or melodeon 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.
The pump organ, reed organ, harmonium, or melodeon 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.