Prelude and Fugue No. 21 in B flat Major from The Well-Tempered Clavier (J.S. Bach) Flashcards Preview

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Flashcards in Prelude and Fugue No. 21 in B flat Major from The Well-Tempered Clavier (J.S. Bach) Deck (23):
1

date of composition

Book 1 - 1722, Book 2 - 1742

2

genre

keyboard music - preludes and fugues

3

structure

2 books, each beginning with preludes and fugues in C + and C -, and moving up chromatically by semitone, ending in B + and B -

4

performing forces

piano

5

Prelude: key

B flat major

6

Prelude: tempo

no specific indication on score, style implies a quick tempo (in the manner of a toccata: a fast keyboard work demonstrating a virtuosic, improvisatory character)

7

Prelude: time signature

C

8

Prelude: texture

homo and polyphonic

9

Prelude: structure/form

binary (AB) form

10

Prelude: A

broken chord passages played in breathless 32 notes and treated sequentially. Marked by frequent 32 note runs. A ends in F major (dominant) and proceeds immediately to B

11

Prelude: B

continues the toccata-like style wiht the use of rapid cadenza-like runs that emerge from arpeggiated seventh chords. emphasizes virtuosity. The improvisatory style is in marked contrast to the fugue

12

Prelude: affection

dramatic, with lots of verve and panache. operatic (recitative-like chords)

13

Fugue: key

B flat major

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Fugue: tempo

moderately fast; no tempo indications

15

Fugue: time signature

3/4

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Fugue: texture

polyphonic

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Fugue: # of voices

3

18

Fugue: type of answer

tonal

19

Fugue: counter-subject

there are two heard simultaneously throughout

20

Fugue: middle section

the first episode leads to G minor. The subject appears in G minor followed by a tonal answer in C minor. The second episode leads to E flat major and a partial entry of the tonal answer in that key. A complete entry of the subject in E flat major

21

Fugue: final section

concludes with a tonal answer reaffirming the home key of B flat major. The final 4 measures act as a coda bringing the fugue to a strong close

22

Fugue: affection

good-natured

23

Review and Reflection

a single emotion or gesture dominates, and has a free, improvisatory style