El gong es un instrumento de percusión. Se trata de un gran disco metálico (habitualmente, de bronce) con los bordes curvados (generalmente hacia adentro), que se percute con un mazo. El gong en general, se suspende verticalmente de un soporte. El tam-tam es un tipo de gong con superficie aplanada y que da un sonido crash en vez de un sonido más conciso y afinado, a diferencia de los gongs con cuerpo de campana. La mayoría tienen una elevación en el centro, situando el punto en que se ha de golpear y será el punto de origen de la vibración que genera el sonido, por lo general, grave y lúgubre. No obstante, a pesar de ser un instrumento relativamente suave, tiene muchas posibilidades de matices: desde un pianissimo a un fortissimo. El gong puede estar afinado o no, por lo que, puede generar tanto sonidos determinados como indeterminados. Es muy popular en China, de donde es originario.

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A gong (from Javanese, Indonesian, Malay: gong; Chinese: 鑼; pinyin: luó; Thai: ฆ้อง Khong; Vietnamese: cồng chiêng) is an African, East and South East Asian musical percussion instrument that takes the form of a flat, circular metal disc which is hit with a mallet.It originated in China and later spread to Southeast Asia, and it can also be used in the percussion section of Western symphony orchestra. Gongs are broadly of three types. Suspended gongs are more or less flat, circular discs of metal suspended vertically by means of a cord passed through holes near to the top rim. Bossed or nipple gongs have a raised centre boss and are often suspended and played horizontally. Bowl gongs are bowl-shaped, and rest on cushions and belong more to bells than gongs. Gongs are made mainly from bronze or brass but there are many other alloys in use. Gongs produce two distinct types of sound. A gong with a substantially flat surface vibrates in multiple modes, giving a "crash" rather than a tuned note. This category of gong is sometimes called a tam-tam to distinguish it from the bossed gongs that give a tuned note. In Indonesian gamelan ensembles, some bossed gongs are deliberately made to generate in addition a beat note in the range from about 1 to 5 Hz. The use of the term "gong" for both these types of instrument is common.

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