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A tibia is a sort of organ pipe that is most characteristic of a theatre organ. Tibia pipes are generally made of wood, stopped, from 16' (Occasionally 32') with the top octave pipes (above 1/2', or 6" made of metal, stopped, and pipes from 1/4', 3" made of metal and open. The mouth is cut very high, and the pipes have little harmonic development - the sound approaches that of a sine wave. There is usually a tremulant on the wind for Tibia pipes - the increase and decrease of wind pressure gives "life" to the sound. ==See also== *(Encyclopedia of Organ Stops ) 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「Tibia (organ pipe)」の詳細全文を読む スポンサード リンク
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