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Hornbostel-Sachs classification number 232.11-92 Friction drum A friction drum is a musical instrument found in various forms in Africa, Asia, Europe and South America. In Europe it emerged in the 16th century and was associated with specific religious and ceremonial occasions. ==Construction== A friction drum is a percussion instrument consisting of a single membrane stretched over a sound box, whose sound is produced by the player causing the membrane to vibrate by friction. The sound box may be a pot or jug or some open-ended hollow object. To produce the friction, the membrane may be directly rubbed with the fingers or through the use of a cloth, or a stick or cord which is attached to the centre of the membrane and then rubbed or moved with a hand, sponge or cloth, generally wet. The membrane may be depressed with the thumb while playing to vary the pitch. When a cord is used the instrument may be referred to as a "string drum" or "lion’s roar". In some friction drums, the friction is obtained by spinning the drum around a pivot. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Friction drum」の詳細全文を読む スポンサード リンク
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