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See also:GONG (See also:Chinese, gong-gong or See also:tam-tam) , a sonorous or musical See also:instrument of See also:Chinese origin and manufacture, made in the See also:form of a broad thin disk with a deep rim . Gongs vary in See also:diameter from about 20 to 40 in., and they are made of See also:bronze containing a maximum of 22 parts of See also:tin to 78 of See also:copper; but in many cases the proportion of tin is considerably less . Such an alloy, when See also:cast and allowed to cool slowly, is excessively brittle, but it can be tempered and annealed in a See also:peculiar manner . If suddenly cooled from a See also:cherry-red See also:heat, the alloy becomes so soft that it can be hammered and worked on the See also:lathe, and afterwards it may be hardened by re-See also:heating and cooling it slowly . In these properties it will be observed, the alloy behaves in a manner exactly opposite to See also:steel, and the Chinese avail themselves of the known peculiarities for preparing the thin sheets of which gongs are made . They cool their castings of bronze in See also:water, and after hammering out the alloy in the soft See also:state, harden the finished gongs by heating them to a cherry-red and allowing them to cool slowly . These properties of the alloy See also:long remained a See also:secret, said to have been first discovered in See also:Europe by See also:Jean See also:Pierre See also:Joseph d'Arcet at the beginning of the 19th See also:century . Riche and See also:Champion are said to have succeeded in producing See also:tam-tams having all the qualities and timbre of the Chinese See also:instruments . The See also:composition of the alloy of bronze used for making gongs is stated to be as follows:' Copper, 76.52; Tin, 22.43; See also:Lead, o•62; See also:Zinc, 0.23; See also:Iron, o•18 . The See also:gong is beaten with a See also:round, hard, See also:leather-covered See also:pad, fitted on a See also:short stick or handle . It emits a peculiarly sonorous See also:sound, its complex vibrations bursting into a See also:wave-like See also:succession of tones, sometimes shrill, sometimes deep . In See also:China and See also:Japan it is used in religious ceremonies, state processions, marriages and other festivals; and it is said that the Chinese can modify its See also:tone variously by particular ways of striking the disk .
The gong has been effectively used in the See also:orchestra to intensify the impression of fear and horror in melodramatic scenes
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The tam-tam was first introduced into a western orchestra by See also:Francois Joseph See also:Gossec in the funeral See also: |
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