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- Brass Instruments
A brass instrument is a musical instrument that produces sound by sympathetic vibration of air in a tubular resonator in sympathy with the vibration of the player's lips. . Brass instruments are also called labrosones or labrophones, from Latin and Greek elements meaning 'lip' and 's
The bell of a wind instrument is the round, flared opening opposite the mouthpiece. It is found on clarinets, saxophones, oboes, horns, trumpets and many other kinds of instruments. On brass instruments, the acoustical coupling from the bore to the outside air occurs at the bell for all notes, and the shape of the bell optimizes this coupling.
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A brass instrument is a musical instrument that you play by blowing through a mouthpiece to change the pitch, or note. Brass players use their breath to produce sound. Instead of blowing into a reed, they vibrate their lips by buzzing them against a metal cup-shaped mouthpiece. The mouthpiece helps to amplify the buzzing, which creates the sound.
Woodwind instrument. Woodwind instruments are a family of musical instruments within the more general category of wind instruments. Common examples include flute, clarinet, oboe, bassoon, and saxophone. There are two main types of woodwind instruments: flutes and reed instruments (otherwise called reed pipes). The main distinction between these ...
Two instruments distinguished solely by bore. In music, the bore of a wind instrument (including woodwind and brass) is its interior chamber. This defines a flow path through which air travels, which is set into vibration to produce sounds. The shape of the bore has a strong influence on the instrument's timbre .
Using different air columns for different tones, such as in the pan flute. These instruments can play several notes at once.Changing the length of the vibrating air column by changing the length of the tube through engaging valves (see rotary valve, piston valve) which route the air through additional tubing, thereby in...Changing the length of the vibrating air column by lengthening and/or shortening the tube using a sliding mechanism. This method is used on the trombone and the slide whistle.Changing the frequency of vibration through opening or closing holes in the side of the tube. This can be done by covering the holes with fingers or pressing a key which then closes the hole. This...
- Methods For Obtaining Different Notes
- Physics of Sound Production
- Breath Pressure
- See Also
- Further Reading
Wind instruments are typically grouped into two families: 1. Brass instruments (horns, trumpets, trombones, euphoniums, and tubas) 2. Woodwind instruments (recorders, flutes, oboes, clarinets, saxophones, and bassoons) Although brass instruments were originally made of brass and woodwind instruments have traditionally been made of wood, the names refer to the method by which a player produces sound rather than the material of the instrument, which may vary. For example, the saxophone is typically made of brass, but is classified as a woodwind instrument because it produces sound with a vibrating reed. On the other hand, the didgeridoo, the wooden cornett (not to be confused with the cornet, which is made of brass), and the serpent are all made of wood (or plastic tubing, in the case of modern serpents), and the olifant made from ivory, but all of them belong to the family of brass instruments because the vibrating is done by the pl...
Sound production in all wind instruments depends on the entry of air into a flow-control valve attached to a resonant chamber (resonator). The resonator is typically a long cylindrical or conical tube, open at the far end. A pulse of high pressure from the valve will travel down the tube at the speed of sound. It will be reflected from the open end as a return pulse of low pressure. Under suitable conditions, the valve will reflect the pulse back, with increased energy, until a standing waveforms in the tube. Reed instruments such as the clarinet or oboe have a flexible reed or reeds at the mouthpiece, forming a pressure-controlled valve. An increase in pressure inside the chamber will decrease the pressure differential across the reed; the reed will open more, increasing the flow of air.The increased flow of air will increase the internal pressure further, so a pulse of high pressure arriving at the mouthpiece will reflect...
The bell of a wind instrument is the round, flared opening opposite the mouthpiece. It is found on clarinets, saxophones, oboes, horns, trumpets and many other kinds of instruments. On brass instruments, the acoustical coupling from the bore to the outside air occurs at the bell for all notes, and the shape of the bell optimizes this coupling. It also plays a major role in transforming the resonances of the instrument.On woodwinds, most notes vent at the uppermost open tone holes; only the lowest notes of each register vent fully or partly at the bell, and the bell's function in this case is to improve the consistency in tone between these notes and the others.
Playing some wind instruments, in particular those involving high breath pressure resistance, produce increases in intraocular pressure, which has been linked to glaucoma as a potential health risk. One 2011 study focused on brass and woodwind instruments observed "temporary and sometimes dramatic elevations and fluctuations in IOP". Another study found that the magnitude of increase in intraocular pressure correlates with the intraoral resistance associated with the instrument and linked intermittent elevation of intraocular pressure from playing high-resistance wind instruments to incidence of visual field loss. The range of intraoral pressure involved in various classes of ethnic wind instruments, such as Native American flutes, has been shown to be generally lower than Western classical wind instruments.
Wind Instrument Summary CDs are: "Microsoft Musical Instruments" ( now out of production but sometimes available on Amazon ), and "Tuneful Tubes?" ( http://sites.google.com/site/tunefultubes)