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The pipe organ is a musical instrument that produces sound by driving pressurised air (called wind) through the organ pipes selected from a keyboard.Because each pipe produces a single pitch, the pipes are provided in sets called ranks, each of which has a common timbre, volume, and construction throughout the keyboard compass.
A mechanical organ is an organ that is self-playing, rather than played by a musician. For example, the barrel organ is activated either by a person turning a crank, or by clockwork driven by weights or springs. [1] Usually, mechanical organs are pipe organs although some instruments were built using reeds similar to those found in a harmonium.
Organ pipes are so sensitive to temperature that the body heat of the organ tuner can affect the tuning. If one holds a small metal flue pipe briefly in one's hand and then returns it to the chest ( windchest ), its pitch (relative to a tuning reference) can be heard to change as the pipe returns to room temperature.
Tracker action in Jørlunde church.Organ by Frobenius (2009). Tracker action is a term used in reference to pipe organs and steam calliopes to indicate a mechanical linkage between keys or pedals pressed by the organist and the valve that allows air to flow into pipe(s) of the corresponding note. [1]
The organ is the world's largest pipe organ located in a sacred building. The console has 874 switches for activating the stops, and the action is electro-pneumatic. The instrument is estimated to weigh over 124 tons, and is organized in 23 divisions. [40] It is continually being enlarged. This organ is played for more than 300 services each year.
A chamber organ is a small pipe organ, often with only one manual, and sometimes without separate pedal pipes that is placed in a small room, that this diminutive organ can fill with sound. It is often confined to chamber organ repertoire, as often the organs have too few voice capabilities to rival the grand pipe organs in the performance of ...
On April 26, 1941 Ray Nelson entertained fans that showed up early with a pipe organ behind the ballpark's grandstands. The Chicago Tribune notes that Nelson had to cut the music before the first ...
The organ at the Naval Academy Chapel has 522 stops. The pitch produced by an organ pipe is a function of its length. All else equal, longer pipes produce lower-pitched notes, and shorter pipes are higher in pitch. An organ stop uses a set (rank) of pipes of graduated lengths to produce the range of notes needed.