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C major (or C-sharp major) is a major scale based on C, consisting of the pitches , , , , , , and . Its key signature has seven sharps. Its relative minor is , and its parallel minor is . Its direct enharmonic equivalent is . A harp tuned to C-sharp major has all its pedals in the bottom position. Because all the strings are then pinched and shortened, this is the least resonant key for the instrument. Although most composers prefer to use the enharmonic equivalent D-flat major because it has just five flats as opposed to the seven sharps of C-sharp major, Johann Sebastian Bach chose C-sharp major for Prelude and Fugue No. 3 in both books of the ''Well-Tempered Clavier''. In Hungarian Rhapsody No. 6, Franz Liszt takes the unusual step of changing key from D-flat major to C-sharp major near the beginning of the piece. Maurice Ravel selected C-sharp major as the tonic key of ''Ondine'' from his piano suite ''Gaspard de la nuit''. Erich Wolfgang Korngold composed his Piano Concerto for the Left Hand, Op. 17, in the key of C-sharp major. Louis Vierne used C-sharp major for the "Dona Nobis Pacem" of the Agnus Dei of his ''Messe Solennelle'' in C sharp minor. ==External links== * (Overview of compositions with 7 accidentals ) 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「C-sharp major」の詳細全文を読む スポンサード リンク
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