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The harmonium is a type of keyboard instrument similar to an organ. The sound is produced by air using foot or hand operated bellows, producing a sound similar to an organ.

Harmonium

The harmonium is a type of keyboard instrument similar to an organ. The sound is produced by air using…

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…