Cornet

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cornet,

brass wind musical instrument, created in France about 1830 by adding valves to the post horn. It is usually in B flat and is the same size as the B flat trumpet, but has a more conical bore. The cornet, a transposing instrumenttransposing instrument,
a musical instrument whose part in a score is written at a different pitch than that actually sounded. Such an instrument is usually referred to by the keynote of its natural scale—the clarinet in A, for example—in which case A is sounded when
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, has a less brilliant tone but greater agility than the trumpet. It has long been a standard instrument in bands. In the orchestra, the cornet is used with the trumpet. It was used extensively in jazzjazz,
the most significant form of musical expression of African-American culture and arguably the most outstanding contribution the United States has made to the art of music. Origins of Jazz

Jazz developed in the latter part of the 19th cent.
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 in the early 20th cent. It should not be confused with the cornett, an instrument of the Middle Ages and Renaissance, which used a cup mouthpiece on a wooden or ivory body supplied with fingerholes similar to those on woodwinds. A bass cornett was used until the early 19th cent.

Cornet

 

a junior officer rank in the Russian cavalry.

The rank of cornet was introduced in 1801 throughout the whole cavalry, except in the dragoon and cossack regiments, and corresponded to the rank of ensign (until 1884) and of second lieutenant (from 1884) in the rest of the troops. From 1882 the rank of cornet was introduced in the dragoon regiments and then in the gendarmerie and the frontier troops. It was abolished in 1917.


Cornet

 

a wind instrument; consists of a joining of cylindrical and conical brass pipes ending in a bell, a valve mechanism (cylindrical or pump), and an attached mouthpiece. The instrument (without mouthpiece) is 295–320 mm long. The cornet is used in opera and symphony orchestras but is most significant in brass bands.