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Woodwind
A
woodwind instrument is a musical instrument in which sound is
produced by blowing against an edge or by a vibrating reed, and in which the
pitch is varied by opening or closing holes in the body of the instrument using a mouthpiece.
There are three main sorts of woodwind instrument:
- Single
Reed instruments use a reed -- a thinly sliced piece of cane, (or less
frequently, plastic)-- that is held against the aperture of the mouthpiece with
a ligature. When air is forced between the reed and the mouthpiece, the
vibrations create the sound. Single reed instruments include the
clarinet and
saxophone
families of instruments.
- Double
Reed instruments use two precisely cut, small pieces of cane joined
together at the base . The finished, bound reed is inserted into the top of the
instrument and vibrates as air is forced between the two pieces of bound cane.
There are two sub-families
- exposed
double reed instruments, where the reed goes between the player's lips. The
oboe,
cor
anglais (also called
english
horn) and
bassoon make up the more popular instruments within this family.
- capped
reed instruments, where there is a cap covering up the reed with a hole in that
the player just blows through. This family includes the
bagpipes and
the crumhorn
- Flute
woodwind instruments where the sound is produced by blowing against an edge.
There are two subfamilies
- open
flute family, where the player uses their lips to form the stream of air which
goes directly from the players lips to the edge, e.g. the transverse
flute
- closed
flute family, where the instrument forms and directs the stream over the edge.
This family includes
whistle
and the recorder family
One interesting difference between woodwind and brass instruments is that
woodwind instruments are non-directional. This means that the sound
produced propagates in all directions with approximately equal volume. Brass
instruments, on the other hand, are highly directional, with most of the sound
produced travelling straight outward from the bell. This difference makes it
significantly more difficult to record a woodwind instrument accurately. It also
plays a major role in some performance situations, such as in marching bands.
Tags:
Music, Wind, Woodwind
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