138. If a subject begins in the tonic, modulates to dominant, and returns to tonic, the answer makes the converse modulations—from dominant to tonic, and back to dominant. No new principles are involved here; two examples will be sufficient.
![\new ChoirStaff << \override Score.BarNumber #'break-visibility = #'#(#f #f #f) \override Score.Rest #'style = #'classical
\new Staff \relative b' { \key e \minor \time 4/4 \mark \markup \tiny { ( \italic a ) }
b2^\markup \bold "S" e, | r4 e' b cis |
d2 cis4 b | ais fis e' d8 cis |
fis4 e8 d cis d b cis | d cis d e dis e cis dis | e }
\new Staff \relative e' { \key e \minor \clef alto
e2^\markup \bold "A" b | r4 b' e, fis |
g2 fis4 e | dis b a' g8 fis |
b4 a8 g fis g e fis | g fis g b ais b gis ais | b } >>](http://upload.wikimedia.org/score/l/u/lu6hlkefqs02kn7uiyeqcxlgcnj84sa/lu6hlkef.png)
![\new ChoirStaff << \override Score.Rest #'style = #'classical \override Score.BarNumber #'break-visibility = #'#(#f #f #f)
\new Staff \relative e' { \key ees \major \time 2/2 \mark \markup \tiny { ( b ) }
ees2^\markup \bold "S" bes' | g r4 ees'8 d | c4 ees a, c |
bes2 r4 c8 bes | aes! bes g aes f g ees f |
d4 d d8 ees f d | ees4 ees ees8 f g ees | bes'2 }
\new Staff \relative b { \key ees \major
bes2^\markup \bold "A" ees | d r4 aes'8 g | f4 aes d, f |
ees2 r4 g8 f | ees f d ees c d bes c |
a4 a a8 bes c a | bes4 bes bes8 c d bes | ees4 s } >>](http://upload.wikimedia.org/score/a/b/abyd8q8mpzn56xg32cawla0b03e0xu4/abyd8q8m.png)
139. In general, any leaps of a dissonant interval, such as a seventh, especially of an augmented or diminished interval, should be reproduced exactly in a tonal answer. The student will find illustrations of this in several of the examples already given. At § 93 (c) and § 126 will be seen a diminished fifth; at § 125 (b) a diminished fourth; and at § 132 (b) an augmented fourth, all of which are retained in the answers. We add one example of a diminished seventh—
![\new ChoirStaff << \override Score.Rest #'style = #'classical
\new Staff \relative e' { \clef bass \key a \minor
r4^\markup \bold "S" e c f | gis, r r8 d'\staccatissimo b\staccatissimo e\staccatissimo c4\staccatissimo }
\new Staff \relative a' { \key a \minor
r4^\markup \bold "A" a g c | dis, r r8 a'\staccatissimo fis\staccatissimo b\staccatissimo | g4 } >>](http://upload.wikimedia.org/score/p/t/ptp4n18a1nbye2vgsdycp9ehykw1rah/ptp4n18a.png)
This subject also contains a diminished fifth which is retained in the answer.