The flute is a musical instrument of the woodwind family. Unlike other woodwind instruments, a flute produces its sound from the flow of air against an edge, instead of using a reed. A musician who plays the flute is generally referred to as either a flautist or a flutist.
Flute tones are sweet in character and blend well with other instruments. The flute's pitch, and various aspects of its timbre are flexible, allowing a very high degree of instantaneous expressive control.
A flute produces sound when a stream of air directed across the top of a hole bounces in and out of the hole.[4] Some engineers have called this a fluidic multivibrator, because it forms a mechanical analogy to an electronic circuit called a multivibrator.
The stream beats against the air in a resonator, usually a tube. The player changes the pitch of the flute by changing the effective length of the resonator. This is done either by closing holes, or more rarely, with a slide similar to a trombone's slide.
(courtesy wikipedia.com)
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