(n.) A wind instrument whose sounding parts are reeds, consisting of a thin tongue of brass playing freely through a slot in a plate. It has a case, like a piano, and is played by means of a similar keyboard, the bellows being worked by the foot. The melodeon is a portable variety of this instrument.

Hammond organ Mark baroque organ bazooka calliophone choralcelo electric organ electro-pneumatic organ harmonium hedgehog hydraulic organ launch pad launching pad launching platform launching tube melodeon melodica mousetrap orchestrelle organ organophone pipe organ projector reed organ seraphine silo steam organ symphonion tracker-action organ tubular-pneumatic organ vocalion