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The ''Christmas Oratorio'' (), , is an oratorio by Johann Sebastian Bach intended for performance in church during the Christmas season. It was written for the Christmas season of 1734 and incorporates music from earlier compositions, including three secular cantatas written during 1733 and 1734 and a now lost church cantata, BWV 248a. The date is confirmed in Bach's autograph manuscript. The next performance was not until 17 December 1857 by the Sing-Akademie zu Berlin under Eduard Grell. The ''Christmas Oratorio'' is a particularly sophisticated example of parody music. The author of the text is unknown, although a likely collaborator was Christian Friedrich Henrici (Picander). The work belongs to a group of three oratorios written towards the end of Bach's career in 1734 and 1735 for major feasts, the others being the ''Ascension Oratorio'' (BWV 11) and the ''Easter Oratorio'' (BWV 249). All parody earlier compositions, although the ''Christmas Oratorio'' is by far the longest and most complex work. The oratorio is in six parts, each part being intended for performance on one of the major feast days of the Christmas period. The piece is often presented as a whole or split into two equal parts. The total running time for the entire work is nearly three hours. The first part (for Christmas Day) describes the Birth of Jesus, the second (for December 26) the annunciation to the shepherds, the third (for December 27) the adoration of the shepherds, the fourth (for New Year's Day) the circumcision and naming of Jesus, the fifth (for the first Sunday after New Year) the journey of the Magi, and the sixth (for Epiphany) the adoration of the Magi. ==Narrative structure== The structure of the story is defined to a large extent by the particular requirements of the church calendar for Christmas 1734/35. Bach abandoned his usual practice when writing church cantatas of basing the content upon the Gospel reading for that day in order to achieve a coherent narrative structure. Were he to have followed the calendar, the story would have unfolded as follows: #Birth and Annunciation to the Shepherds #The Adoration of the Shepherds #Prologue to the Gospel of John #Circumcision and Naming of Jesus #The Flight into Egypt #The Coming and Adoration of the Magi This would have resulted in the Holy Family fleeing before the Magi had arrived, which was unsuitable for an oratorio evidently planned as a coherent whole. Bach removed the content for the Third Day of Christmas (December 27), John's Gospel, and split the story of the two groups of visitors—Shepherds and Magi—into two. This resulted in a more understandable exposition of the Christmas story: #The Birth #The Annunciation to the Shepherds #The Adoration of the Shepherds #The Circumcision and Naming of Jesus #The Journey of the Magi #The Adoration of the Magi The Flight into Egypt takes place after the end of the sixth part. That Bach saw the six parts as comprising a greater, unified whole is evident both from the surviving printed text and from the structure of the music itself. The edition has not only a title—''Weihnachts-Oratorium''—connecting together the six sections, but these sections are also numbered consecutively. As John Butt has mentioned,〔Sleeve notes to Philip Pickett's recording of the ''Christmas Oratorio'' (Decca, 458 838, 1997)〕 this points, as in the ''Mass in B minor'', to a unity beyond the performance constraints of the church year. 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「Christmas Oratorio」の詳細全文を読む スポンサード リンク
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