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Thursday, September 16, 2010

Trumpet


The trumpet is the musical instrument with the highest register in the brass family.Trumpets are among the oldest musical instruments,dating back to at least 1500 BCE. They are constructed of brass tubing bent twice into an oblong shape, and are played by blowing air through closed lips, producing a "buzzing" sound which starts a standing wave vibration in the air column inside the trumpet.Its a kind of soprano brass wind instrument consisting of a long metal tube looped once and ending in a flared bell, the modern type being equipped with three valves for producing variations in pitch.There are several types of trumpet; the most common is a transposing instrument pitched in B?. The tube length of the most common B-trumpet is about 134 cm. The predecessors to trumpets did not have valves, but modern trumpets have either three piston valves or three rotary valves. Each valve increases the length of tubing when engaged, thereby lowering the pitch.The trumpet is used in many forms of music, including classical music and jazz.
A trumpet is a brass wind instrument noted for its powerful tone sounded by lip vibration against its cup-shaped mouthpiece. A trumpet consists of a cylindrical tube, shaped in a primary oblong loop that flares into a bell. Modern trumpets also have three piston valves as well as small, secondary tubing that act as tuning slides to adjust the tone. Almost all trumpets played today are B-flat. This is the tone naturally played when the trumpet is blown. They have a range between the F-sharp below middle C to two and a half octaves above (ending at B), and are comparatively easier to play than other brass instruments.

The first trumpets were probably sticks that had been hollowed out by insects. Numerous early cultures, such as those in Africa and Australia, developed hollow, straight tubes for use as megaphones in religious rites. These early "trumpets" were made from the horns or tusks of animals, or cane. By 1400 B.C. the Egyptians had developed trumpets made from bronze and silver, with a wide bell. People in India, China, and Tibet also created trumpets, which were usually long and telescoped. Some, like Alpine horns, rested their bells on the ground. Assyrians, Israelites, Greeks, Etruscans, Romans, Celts, and Teutonic tribes all had some form of horn, and many were decorated. These instruments, which produced low, powerful notes, were mainly used in battle or during ceremonies. They were not usually considered to be musical instruments. To make these trumpets, the lost-wax method was used. In this process, wax was placed in a cavity that was in the shape of a trumpet. This mold was then heated so that the wax melted away, and in its place molten bronze was poured, producing a thick-walled instrument.

The trumpet is constructed of brass tubing bent twice into an oblong shape. The trumpet and trombone share a roughly cylindrical bore which results in a bright, loud sound. The bore is actually a complex series of tapers, smaller at the mouthpiece receiver and larger just before the flare of the bell begins; careful design of these tapers is critical to the intonation of the instrument. By comparison, the cornet and flugelhorn have conical bores and produce a more mellow tone. Bore sizes generally range from 0.430 to 0.472 inches and are usually listed as medium, medium large and large from various manufacturers

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