Unless otherwise mentioned, put the cantus firmus in any part, but avoid
its continued use in the same part.


EXERCISES

To canti firmi _a_ and _b_ write the first species in all parts. Write each
three times, setting the cantus firmus in a different part in each
solution. This necessitates transposing the cantus firmus, when setting it
in the other parts.


CANTI FIRMI

[Illustration: Fig. 93.]




LESSON XII

THE SECOND SPECIES


[Illustration: Fig. 94.]

The second species is written in one part and the first in the other two.

All suggestions made for the second species in two-part counterpoint are