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Steady flow through a corrugated pipe at low Reynolds numbers results in a fluctuating volumetric flow rate that generates a monopoly-like sound field at the pipe exit. Examples of such pipes are shown in figure on the right. The yellow plastic pipe shown in the image is a toy that whistles when the pipe is whirled around. The metal pipe shown ...
The whirly tube, corrugaphone, or bloogle resonator, also sold as Free-Ka in the 1960s-1970s, is an experimental musical instrument which consists of a corrugated (ribbed) plastic tube or hose (hollow flexible cylinder), open at both ends and possibly wider at one end (), the thinner of which is rotated in a circle to play.
Stopped flutes like the gedackt are extremely versatile in an organ specification. Certain types of organ stops go in and out of fashion over the centuries, but the stopped flute ranks like the gedackt are always present on instruments of all sizes. Even the very smallest pipe organs frequently have some form of stopped flute in the specification.
The diameter of a flue pipe directly affects its tone. When comparing pipes of otherwise identical shape and size, a wide pipe will tend to produce a flute tone, a medium pipe a diapason tone, and a narrow pipe a string tone. These relationships are referred to as the scale of the pipe: i.e., wide-scaled, normal-scaled, or narrow-scaled. As a ...
A party whistle A metal pea whistle. A whistle is a musical instrument which produces sound from a stream of gas, most commonly air. It may be mouth-operated, or powered by air pressure, steam, or other means. Whistles vary in size from a small slide whistle or nose flute type to a large multi-piped church organ.
Svirel is a simple wooden (sometimes metal) pipe. On the upper end it has a beak-like whistle device and in the middle of the face side it has several (usually six) finger-holes cut out. The wooden pipe is commonly made of buckthorn, hazel, maple, ash, or bird cherry.
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