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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.
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]
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.
The largest fully mechanical pipe organ in Europe is located in the St. Laurenschurch in Rotterdam, The Netherlands. It has 4 Manuals, 5 Divisions, 85 Stops, 7,600 Pipes and is 23 meters tall. The organ was completed in 1973, built by Marcussen & Søn from Denmark.
An organ that utilizes tubular-pneumatic action is commonly called a "tubular-pneumatic organ". It seems the first use of this action was in 1851, in Willis' Great Exhibition organ, though it was only very limited. It appears that the first organ using tubular-pneumatic action throughout was by T.C. Lewis at St Andrew's Hall, Glasgow, in 1877.
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 ...
An organ pipe is a sound-producing element of the pipe organ that resonates at a specific pitch when pressurized air (commonly referred to as wind) is driven through it. Each pipe is tuned to a note of the musical scale. A set of organ pipes of similar timbre comprising the complete scale is known as a rank; one or more ranks constitutes a stop.
A windchest is a component of a pipe organ on which the pipes sit. As the organist plays the instrument, the keys, stops, and windchest work together as a mechanism (called an 'action') to direct pressurized air (called 'wind') into the pipes, thus creating sound.