Page:Fugue by Ebenezer Prout.djvu/43

Chap. III.]

Further illustrations of this point will be met with when we come to tonal fugues. The following rule is fully justified by the practice of the great masters:—

"Whenever a subject in a minor key ends on the third of the tonic, the answer may end on either the major or minor third of the dominant, as may be preferred."

70. If the subject be throughout in the key of the dominant, the answer will be in the key of the tonic—

It is important to notice that the answer is now a fourth above, or a fifth below, instead of being (as in previous cases) a fifth above, or a fourth below, the subject.