...This system uses a pair of metal string-receiving shafts (bequilles) that are turned about a quarter turn in opposite directions by pedal operation to obtain a semitone (Figure 1-b). Furthermore, Sébastien Érard (1752-1831) made two major contributions to the history of the harp. The first was the invention of the fourchette system (Figure 1-c). ... From 【Piano】… In the first half of the 19th century, various technical innovations and improvements were made. In 1822, the French Sébastien Érard (1752-1831) and his nephew Pierre É. (1794-1865) invented the double escapement in the action, which became common in the second half of the century. In the middle of the century, after various attempts, felt-wrapped hammers began to be used. … *Some of the terminology that mentions "Érard, S." is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これは,対になっている金属製の弦受軸ベキーユbéquilleをペダル操作によって,それぞれ反対方向に約1/4回転して半音を得るものである(図1‐b)。 さらにエラールSébastien Érard(1752‐1831)は,ハープの歴史上,二つの大きい功績を残した。一つはフルシェット式の考案である(図1‐c)。… 【ピアノ】より… 19世紀前半にはさらにさまざまな技術的くふうと改良がなされた。アクションの面では1822年にフランスのエラールSébastien Érard(1752‐1831)とその甥ピエールPierre É.(1794‐1865)がダブル・エスケープメントを考案,これは世紀後半に一般化した。世紀中ごろには種々の試みの末,フェルト巻きのハンマーが使われ始めた。… ※「Érard,S.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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