[Illustration: Fig. 29.]

In the last measure but one, both the supertonic and leading tone should
appear. [Fig. 30.]

[Illustration: Fig. 30.]

_Three_ notes may be written to one of the cantus firmus, as in Fig. 31.
For this no new rules are required.

[Illustration: Fig. 31.]

The cadences in Fig. 32 are good. It will be seen that the cadences of the
first species may also be used.

[Illustration: Fig. 32.]


EXERCISES

To cantus firmus _a_ write two counterpoints above and two below in the
first species.

To cantus firmus _b_ write two above and two below in the second species.


CANTI FIRMI

[Illustration: Fig. 33.]