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The harmonium is a free standing keyboard instrument, similar to a reed organ or a pipe organ.

Harmonium

The harmonium is a free standing keyboard instrument, similar to a reed organ or a pipe organ.

A musical instrument consisting essentially of one or more graduated sets of smll free reeds of metal, which are sounded by streams of air set in motion by a bellows, and controlled from a keyboard like tha of a pianoforte.

Reed Organ

A musical instrument consisting essentially of one or more graduated sets of smll free reeds of metal,…

This image shows an ancient pipe organ. A pipe organ is a keyboard instrument that makes its sound by forcing air through wood or metal pipes.

Pipe Organ

This image shows an ancient pipe organ. A pipe organ is a keyboard instrument that makes its sound by…

A cross sectional view of an organ flue pipe. The compressed air is sent through A. As the air enters through the pipe, the lip, D, cuts the air. This produces sound for the organ.

Cross Sectional View of Organ Flue Pipe

A cross sectional view of an organ flue pipe. The compressed air is sent through A. As the air enters…