The Prelude and Fugue in B-flat minor, BWV 891, is a keyboard composition by Johann Sebastian Bach. It is the 22nd prelude and fugue in the second book of ''

The Well-Tempered Clavier ''The Well-Tempered Clavier'', BWV 846–893, consists of two sets of preludes and fugues in all 24 major and minor keys for keyboard by Johann Sebastian Bach. In the composer's time, ''clavier'', meaning keyboard, referred to a variety of in ...

'' (WTC), a series of 48 preludes and

fugue In music, a fugue () is a contrapuntal compositional technique in two or more voices, built on a subject (a musical theme) that is introduced at the beginning in imitation (repetition at different pitches) and which recurs frequently in the c ...

s by the composer. It was composed in 1738.

Prelude

The prelude is in cut time and has 83 measures. It is made up mainly of eighth notes, quarter notes, half notes and whole notes.

Fugue

The fugue is in time and has 101 measures and four

voices Voices or The Voices may refer to: Film and television * ''Voices'' (1920 film), by Chester M. De Vonde, with Diana Allen * ''Voices'' (1973 film), a British horror film * ''Voices'' (1979 film), a film by Robert Markowitz * ''Voices'' (19 ...

. It is made up mainly of eighth notes, half notes, dotted half notes, quarter notes, whole notes, and dotted whole notes. Glenn Gould said it is one of his favourite fugues, along with F-sharp minor fugue, BWV 883, and E major fugue, BWV 878, also from the second book of WTC.

References

The Well-Tempered Clavier 1738 compositions Compositions in B-flat minor {{classical-composition-stub