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E (E-flat) or mi bémol is the fourth semitone of the solfege. It lies a diatonic semitone above D and a chromatic semitone below E, thus being enharmonic to D (D-sharp) or Re Dièse. However, in some temperaments, D-sharp is not the same as E-flat. E-flat is a perfect fifth below , whereas D-sharp is a major third above B. When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of the E above middle C (or E4) is approximately 311.127 Hz. See pitch (music) for a discussion of historical variations in frequency. ==Well-known compositions in E flat major== The prelude to Richard Wagner's ''Das Rheingold'' is a famous piece of drone music that begin with a low E flat and builds to more and more elaborate figurations of the chord of E flat major. It is used in this opera to portray the motion of the river Rhine.〔Erickson, Robert, ''Sound Structure in Music'', p. 94. University of California Press, 1975 ISBN 0-520-02376-5〕 Beethoven's Piano Concerto No. 5 (also known as ''The Emperor'') is another well-known piece set in the key of E flat major. Jimi Hendrix's Voodoo Chile is another well-known popular music piece commonly performed in E flat minor. 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「E♭ (musical note)」の詳細全文を読む スポンサード リンク
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