Musical Instruments Harmonium

Harmonium

The harmonium is a type of reed organ, a freestanding keyboard instrument in which air is forced by manual or voluntary means over a set of free floating reeds by bellows.

Its free-floating reeds are placed in slits in a wind chest, whose valves are directly activated by the keys from a traditional organ-like keyboard via a set of pushrods and/or pull rods. The typical harmonium has one keyboard, but larger models with two or even three keyboards were also built.