The is a keyboard instrument that uses vibrating air columns to produce sound. piano harpsichord pipe organ accordion

The pipe organ is a keyboard instrument that uses vibrating air columns to produce sound.

Explanation:

    The organ is the oldest keyboard instrument, considered the most complex of all musical instruments.

    They consist of a large system of wood and metal tubing, a pneumatic device - the bellows, and a console that contains the keyboards, records and pedals. The sound of the organs is emitted through the passage of air under pressure inside its tubes, which has its mechanism driven by keyboards.

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virtual smiles! : )

~mqddie