EXERCISES

To cantus firmus a write the first species in all parts, as previously directed.

To cantus firmus b write second species in one part. Write three times, changing cantus firmus and counterpoint about so that they will appear in each part in turn.

Canti Firmi

Fig.
100.

LESSON XIII

SECOND SPECIES IN TWO PARTS

Fig.
101.

The suggestions for second species in both parts, in two-part counterpoint, apply for the two parts having the second species in three-part counterpoint.

Accidental harmonies sometimes appear on the weak beat. All tones in this accidental harmony foreign to the chord on the strong beat must be treated as dissonances. This must be regarded whenever two or more parts have other than the first species. [[Fig. 102.]]