- Nun ist das Heil und die Kraft, BWV 50
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Nun ist das Heil und die Kraft (BWV 50) is a choral movement long attributed to Johann Sebastian Bach and assumed to be part of a lost cantata. The piece is written for an unusually large orchestra, indicating that it was composed for a special occasion. The score involves two choirs of four parts each, three oboes, three trumpets, timpani, string orchestra, organ, and cembalo (harpsichord). It lasts approximately four minutes. The text, "Now have come the salvation and the power", is from Revelation 12:10, and the American Bach scholar William H. Scheide suggested that is was written for a Michaelmas celebration.
The work has fascinated Bach scholars because of questions about its provenance. No autograph sources exist, and the earliest copies extant do not mention Bach's name. In 1982, Scheide argued that the existing version (for double choir) is an arrangement by an unknown hand of a lost original for five voices by J. S. Bach. His argument was based on irregularities in BWV 50's part-writing, which are highly unlike the writing of J. S. Bach. In 2000, the American performer and scholar Joshua Rifkin argued that a more plausible solution of this puzzle is that the author of BWV 50 was not Bach at all, but an unknown (but highly gifted) composer of the era. The suggestion is controversial.
References
- Allmusic.com
- Finscher, Ludwig. Notes to Bach Sacred Cantatas Volume 4Bach 2000, Teldec.
- http://www.bach-cantatas.com/Ref/BWV50-Ref.htm
- Rifkin, Joshua. "Siegesjubel und Satzfehler. Zum Problem von Nun ist das Heil und die Kraft (BWV 50)" (Leipzig, 2000: Bach Jahrbuch )
- Scheide, William H. 'Nun ist das Heil und die Kraft' BWV 50: Doppelchörigkeit, Datierung und Bestimmung.' (Leipzig, 1982: Bach Jahrbuch)
External links
- Cantatas, BWV 41-50: Free scores at the International Music Score Library Project.
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