use of imitation at the beginning as in Fig. 131. The imitation need only
be relative and continue for three or four notes. It is also well, when a
part uses a striking melodic figure, to have some other part imitate it
immediately after.

[Illustration: Fig. 131.]




SIMPLE COUNTERPOINT IN FOUR PARTS

LESSON XXIII


[Illustration: Fig. 132.]

No new suggestions are needed, except as follows: All covered fifths and
octaves permitted in harmony are allowed here. When the cantus firmus is in
the lowest part and the choice of the last chord but one is V4/3 or vii_6°,
use the latter, as in Fig. 133.

[Illustration: Fig. 133.]


EXERCISES

To canti firmi _a_ and _b_ write the first species in the other parts.
Write each four times, setting the cantus firmus in each part in turn.