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Manualism is the art of playing music by squeezing air through the hands. Because the sound produced has a distinctly flatulent tone, such music is usually presented as a form of musical comedy or parody. The musical performer is called a manualist, who may perform a cappella or with instrumental accompaniment. Playing recognizable tunes by squeezing the hands together is extremely difficult, and could take many years of practice to master the art.〔(The Manualism Page ), by Gaston and Purcell〕 Some manualists practice for as much as 30 years before finally reaching a presentable level of proficiency. ==Technique== Just as a trumpeter makes sound by blowing air between the lips, a manualist makes sound by squeezing air between two hands. The hands are held together, trapping a pocket of air between the two palms.〔(R. A. Wilson radio interview ), "Hand Music: No Manual Needed", NPR: Morning Edition, July 25, 2006 (text and audio)〕 Using the fingers of one hand, the air is squeezed out the top, between the base of the thumb and the opposite hand, to form a musical note. The pitch is determined by the force used to hold the hands together. The tighter the grip, the higher the note.〔(R. A. Wilson video interview ), "An Interview with R. A. Wilson, Manualist", TVLand (video)〕 Bass notes may be produced by squeezing the air pocket out the opposite side, near the pinky finger. Even with years of practice, manualism is very difficult to control. It may be one of the hardest "instruments" in the world to play, and live stage performances are extremely rare. 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「Manualism (hand music)」の詳細全文を読む スポンサード リンク
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