Celesta (English spelling)

Japanese: チェレスタ(英語表記)celesta
Celesta (English spelling)
An orchestral keyboard instrument similar to a small upright piano. Also called a celesta. It was patented in 1886 by Parisian instrument maker Auguste Mustel. Metallic bars (glockenspiel) are placed under the keys, and small hammer felts strike the bars using a simple striking mechanism. Wooden resonators are placed under each bar to amplify the fundamental waves (component tones) emitted by the bars. Pressing the pedal raises the dampers holding the bars, allowing the sound to be extended or softened. The standard range is four octaves from middle C upwards. A similar instrument called the dulcitone, which uses tuning forks instead of bars and has a softer tone than the celesta, is sometimes mistakenly called the celesta. The dulcitone was invented in 1865 by Mustel's father, Victor, and patented in 1868 after further improvements.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
小型のアップライト・ピアノに似たオーケストラ用の鍵盤楽器。セレスタともいう。パリの楽器製作者オーギュスト・ミュステルが 1886年に特許を取得した。鍵盤の下に金属音板(鉄琴)が配置され,単純な打鍵機構を利用して小型のハンマーフェルトが音板を叩く。音板が発する基本波(成分音)を増幅するため,それぞれの音板の下に木製の共鳴器が設置されている。ペダルを踏むと,音板を押さえているダンパーがもち上がり,音を伸ばしたり弱くすることができる。標準的な音域は,中央ハから上へ 4オクターブ。音板の代わりに音叉を使用した,チェレスタより音色が柔らかい類似の楽器ダルシトーンが,誤ってチェレスタと呼ばれることもある。ダルシトーンは,ミュステルの父ビクトールが 1865年に発明し,改良を加えたのち 1868年に特許を取得した。

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