Prelude and Fugue in B-flat major, BWV 866

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The Prelude and Fugue in B-flat major, BWV 866, is a keyboard composition by Johann Sebastian Bach. It is the 21st prelude and fugue in the first book of The Well-Tempered Clavier , a series of 48 preludes and fugues by the composer. It was composed no later than 1722. [1]

Contents

Prelude

The prelude is in common time (4/4 time) and is composed of 20 bars, which are split into 2 periods of 10 bars each. The first period has a toccata-style melody which uses demisemiquaver (32nd note) broken chords and scale passages. In the first two bars, it uses a four-note sequence which drops by a third every half-bar. This period ends with a perfect cadence in dominant key of F major.

The second period uses a fantasia style and alternates between chords and scale progressions. The coda in bar 20 uses an extended arpeggio in the tonic that confirms the key of B-flat major. One copy of the prelude by a Bach pupil has the word adagio to the big chords in bar 11, which suggests that the second period should have a more improvisatory rhythm. [2] [3] Below are the opening bars of the prelude:

Prelude and Fugue in B-flat major, BWV 866

The Czerny edition has an extra bar added accommodating a cadence after the 20th and final bar of the prelude, described by Tovey as "the most Philistine single printed chord in the whole history of music". [4]

Fugue

The structure of the fugue is similar to that of sonata form: it has an exposition (bars 1–13), a development (bars 13–41) and a recapitulation (bars 41–48). In the exposition, the subject is stated in the tonic, B-flat major. The second voice enters in the dominant, F major, in bar 5, then the third voice enters in the tonic once again in bar 9.

In the development, the subject is restated, then the first episode (bars 19–22) modulates the fugue to G minor, then the subject is restated twice in G minor, then C minor. The second episode (bars 30–35) then modulates the fugue to G minor, then C minor. The subject is then restated in E-flat major.

In the recapitulation, the subject is restated once again, still in E-flat major, then a coda (bars 45–48) leads to a perfect authentic cadence in the tonic. [3] [5] [6] Below are the first two statements of the fugue:

Prelude and Fugue in B-flat major, BWV 866

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Prelude and Fugue in C sharp Major, BWV 848, is a keyboard composition written by Johann Sebastian Bach. It is the third prelude and fugue in the first book of The Well-Tempered Clavier, a series of 48 preludes and fugues by the composer.

The Prelude and Fugue in D minor, BWV 875 is a keyboard composition written by Johann Sebastian Bach. It is the sixth prelude and fugue in the second book of The Well-Tempered Clavier, a series of 48 preludes and fugues by the composer.

The Prelude and Fugue in G-sharp minor, BWV 887, is the eighteenth prelude and fugue in the second volume of The Well-Tempered Clavier by Johann Sebastian Bach. It was written in 1738.

Prelude and Fugue in E-flat major, BWV 852, is a keyboard composition by Johann Sebastian Bach. It is the seventh prelude and fugue in the first book of The Well-Tempered Clavier, a series of 48 preludes and fugues by the composer.

The Prelude and Fugue in B-flat minor, BWV 867, is a keyboard composition by Johann Sebastian Bach. It is the 22nd prelude and fugue in the first book of The Well-Tempered Clavier, a series of 48 preludes and fugues by the composer. It was composed in 1722 or earlier.

The Prelude and Fugue in D major, BWV 874, is a keyboard composition by Johann Sebastian Bach. It is the fifth prelude and fugue in the second book of The Well-Tempered Clavier, a series of 48 preludes and fugues by the composer. It was composed between 1739 and 1742.

Prelude and Fugue in C-sharp major, BWV 872, is a keyboard composition written by Johann Sebastian Bach. It is the third prelude and fugue in the second book of The Well-Tempered Clavier, a series of 48 preludes and fugues in every major and minor key.

References

  1. "The Well-Tempered Clavier I No. 21 in B-flat major – Bach". www.bachvereniging.nl. Retrieved 2023-06-24.
  2. Ledbetter, David (2008). Bach's Well-tempered Clavier: The 48 Preludes and Fugues. Yale University Press. p. 221. ISBN   9780300128987.
  3. 1 2 Schulenberg, David (1992). The Keyboard Music of J.S. Bach. Macmillan Publishing Company. p. 192. ISBN   9780028732756. LCCN   91039348.
  4. Tovey, Donald Francis (1924). J. S. Bach, Forty-eight Preludes and Fugues, Book 1. London: ABRSM.
  5. Tonic Chord (2018-05-05). "Bach: Prelude and Fugue No.21 in Bb Major, BWV 866 Analysis". Tonic Chord. Retrieved 2023-06-24.
  6. Ledbetter, David (2008). Bach's Well-tempered Clavier: The 48 Preludes and Fugues. Yale University Press. pp. 221–222. ISBN   9780300128987.