Page:Fugue by Ebenezer Prout.djvu/96

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78

Fugue.

[Chap. V.

fourth and fifth, nor is it subsequently used at all. We cannot therefore consider it a countersubject. But at the 35th bar a genuine countersubject makes its appearance.

J. S. Bach. Wohltemperirtes Clavier, Fugue 4.

$\new ChoirStaff << \new Staff \relative d'' { \key cis \minor \time 4/4 \partial 2. \mark \markup \tiny { (\italic"a") } dis4^"CS" e fis | gis8 fis gis a gis fis e gis | fis e fis gis fis e dis fis | e s } \new Staff \relative c' { \clef tenor \key cis \minor s4 cis2^"S" | bis e | dis1 | cis1.*1/6 } >>$

This countersubject accompanies every subsequent entry of the subject till the coda of the fugue. At the 49th bar a second countersubject is introduced—

$\new ChoirStaff << \override Score.TimeSignature #'stencil = ##f \override Score.Rest #'style = #'classical \new Staff \relative f'' { \key cis \minor \time 4/4 \partial 8 fis8^"S" | eis2 a | gis1 ~ | gis4 f8 } \new Staff \relative c' { \key cis \minor r8 r4 cis^"CS2." fis fis | fis eis8 dis eis2 | fis4 s8 } >>$

Both countersubjects are worked together with the subject in triple counterpoint. Another fine example of two countersubjects introduced late in the fugue will be found in the 38th fugue (in F sharp minor) of the same work.

173. A remarkable example of a fugue with two regular countersubjects, both of which appear in the first exposition, is seen in No. 21 of the 'Wohltemperirtes Clavier.' We quote the commencement of the fugue, writing it in open score, that the separate parts may be more clearly followed—

J. S. Bach. Wohltemperirtes Clavier, Fugue 21.

$\new ChoirStaff << \override Score.BarNumber #'break-visibility = #'#(#f #f #f) \override Score.Rest #'style = #'classical \new Staff \relative f' { \key bes \major \time 3/4 r8 \[ f^"S" g f bes d, | c a'16 g bes a g f c'8 ees, | d bes'16 c a bes c d ees d c ees | d c bes c a bes c d ees d c ees | d8.[ \] c16]^\markup \tiny \italic "Codetta." bes a bes c d8[ \[ f]^"CS1." ~ | f bes, a bes e g ~ | g a,16 bes c8 c c c | c16 bes a bes c8 c c c | c4 \] r r16 \[ d^"CS2." bes d | ees8 r r4 r16 ees c ees | f8 r r a,16 bes c bes a c | bes4 r8 a16 bes c bes a c | bes8 \] s } \new Staff \relative b { \clef alto \key bes \major R2.*4 r8 \[ bes^"A" d bes f' a, | g e'16 d f e d c g'8 bes, | a8 f'16 g e f g a bes a g bes | a g f g e f g a bes a g bes | a8.[ \] g16] f ees! d ees f8 \[ bes^"CS1." ~ | bes ees, d ees a c ~ | c d,16 ees f8 f f f | f16 ees d ees f8 f f f | f4 \] } \new Staff \relative f { \clef bass \key bes \major R2.*8 r8 \[ f^"S" g f bes d, | c a'16 g bes a g f c'8 ees, | d bes'16 c a bes c d ees d c ees | d c bes c a bes c d ees d c ees | d8 \] s } >>$