Fig.
140.

LESSON XXVII

Fig.
141.

EXERCISES

To cantus firmus a write the first, second and third species in the other three parts. Write twice, changing the parts about [[Fig. 141a].]

To cantus firmus b write fourth species in one part, as directed in previous lessons. [[Fig. 141b].]

To cantus firmus c write third species mixed in the other three parts. [[Fig. 139b].]

Canti Firmi

Fig.
142.

LESSON XXVIII