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Organ (instrument)

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ronaldo moscoso

on 7 December 2013

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Transcript of Organ (instrument)

Organ (instrument)
Introduction
The Organ is a keyboard instrument of one of more divisions played by using hands and/or feet. The Organ is a somewhat old instrument that is usually composed of metal pipes which emit sound.
What Family?
The Organ is considered to be part of the wind and/or keyboard family of instruments. The wind family consists of all the instruments that require air to flow through them. This woodwind instruments can be considered to be of the Aerophones. An Aerophone is any instrument that produces sound primarily by causing a body of air to vibrate, without the use of strings or membranes.

Since the Organ much like the piano consists of a keyboard, the organ fits into the same family. The keyboard family consists of instruments such as the piano, pipe organ, accordion and the pianet.
Description
There are many types of organs. They are as follows: pipe organs, non-pipe organs, electronic organs, hybrid organs, mechanical organs, and reed organs.

Because there are many types of organs we shall start by describing the pipe organ, which has some of the main characteristics of other organs. Some others will follow.
The pipe organ is the largest and most common. The pipe organ has been appraised as the "king of instruments" by Mozart. It began its existence in the 14th century. Pipe organs range in size from a single short keyboard to hue instruments with over 10,000 pipes. century. The reed Organ Is another type or organ used widely before the development of the electric organ it was smaller, cheaper and more portable.

History
Instrument Uses
The organ is a relatively old instrument. It's from western musical tradition and dates back to the time of Ctesibius of Alexandria, who is credited with inventing the Hydrauluis. Ctesibius created the Hydrauluis back in 3rd century BC. This worked with the use wind and water pressure to create sound. By the 6th or 7th century AD, bellows were used to supply organs with wind. Beginning in the 12th century, the organ began to evolve into a more complex instrument, capable of producing different timbres. By the 17th century, most of the sounds available on the modern classical organ had been developed. From that time onwards, the pipe organ was the most complex, man-made device. This was a distinction it retained until the Industrial Revolution of the 19th century. Currently, organs are being made from the form that has been used from the 14th century, just in different sizes/scopes. The traditional larger ones of today can have up to three or four keyboards with five octaves each, and a two-and-a-half octave pedal board.
The most popular uses of organ’s today is in the playing of classical music. Organs are mostly found in churches or classical concert halls today. But more unusally, they can also be found during sporting events. During traditional American sporting games, like baseball, the organ has been used and described as "an accessory to the overall auditory experience of the ballpark." It can also be heard in select basketball and ice hockey events.

This insturment hasn’t recently been frequently been used, as it has decreased in popularity. But in its prime, the organ was also included in rock music of the 1960’s and 70’s. They used electrical organs as it was cheaper and better sounds that worked for their music. It has also been used in jazz music, as it can replace the piano and bass in standard jazz combos.

Sample Music
Produce the Music
Organ music is created with this instrument when a key on the keyboard is depressed. When this is done, the key action admits wind into a pipe causing sounds to be heard. The organists also uses stops, which block the sound that comes out of some of the pipes. The organist also uses pedals, on some models, which also make notes that are too be heard. These features add on to the playing of many notes/octaves.

Physics
The physics of the organ are not hard to understand. Once a key action takes place, this will physically connects the keys and the windchests is a mechanical or tracker action. That connection happens through a series of rods called trackers. When the organist presses down a key, the corresponding tracker moves, allowing wind to enter the pipe, which ultimately causes sound. Then the organist uses a stop contol. Here they actually pull down on the stops, which makes the sounds end, giving control to the player.
Timbre
The timbre affects how the organ sounds. The timbre and sound all depends on the volume of air delivered to the pipe and the manner in which it is constructed and voiced, which would be determined by the makers or the organ. This causes the volume of the organ to not be changed during playing.
Here is a spectrograph of: http://arvin.schnell-web.net/xanalyser/pipe-organ.png
Here, it is easy to see the peaks in the graph show the instrument’s characteristic harmonics intensity pattern,, which differ from other instruments.
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