MUS 1751 Lecture : The Organ Notes
Document Summary
Make up a pipe organ: wind, pipes, and a keyboard. Divisions include: swell organ, great organ, and the positive or choir organ. Pedal organ: unit of pipes for the feet. Swell organ: pipes in an enclosed chamber; able to control dynamics. Great organ: pipes in an unenclosed chamber; cannot be controlled dynamically. Positive organ: smallest of the great division; pipes are enclosed as well. Shape and size: determines the quality or color of sound. Alloy of lead and tin: what pipes are made out of. Tin pipes cause the sound of a pipe to be brighter. Longer pipe= lower pitch; shorter pipe= higher the pitch. During the baroque period, wind was pumped by someone behind the organ. Today, it is done by a blower through the use of electricity. Large organs can have up to 15,000 pipes. Stop is to indicate a particular set of pipes. Set of pipes is called rank of pipes .
