Touring the largest organ in the world

An evening pause: Specifically, this tour takes us from the bottom to the top of the largest pipe, and then shows us what comes out when you play it.

Hat tip Judd Clark, who provides this additional information:

Constructed between May 1929 and December 1932, the Main Auditorium Organ is the “Poseidon”, built by the Midmer-Losh Organ Company, and is the world’s largest pipe organ. Also included in this organ are pipes operating on 100 inches of pressure, the Grand Ophicleide being the loudest and also most famous. The instrument has an estimated 33,113 pipes and requires approximately 600 horsepower (450 kW) of blowers to operate.