any species in any part.

To the cantus firmus write two counterpoints above and two below, in the
fourth species.


CANTUS FIRMUS

[Illustration: Fig. 70.]




LESSON VII

FOURTH SPECIES (Continued)


The first and fourth species may be mixed as in Fig. 71. Rules for writing
other than the first species in both parts are to be regarded.

[Illustration: Fig. 71.]


EXERCISES

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

To cantus firmus _b_ write two above and two below, three half-notes to the