A Treatise on Simple Counterpoint in Forty Lessons

by Friedrich J. Lehmann

THIRD SPECIES IN BOTH PARTS

Fig. 55.

The suggestions given for writing second species in both parts apply here, except that when both parts move degreewise, any interval may come on the second and fourth quarters, preferably a consonance. The third quarter is treated the same as the second half when writing the second species in both parts.

The augmented fourth, and diminished fifth and seventh, may be approached in similar motion. [[Fig. 56.]]

Fig. 56.

The augmented fourth following the perfect fourth, as in [Fig. 56a], is good.

The minor seventh, and the major and minor ninth of a chord, may be used freely on any but the first quarter, but must be consonant with the other part. [[Fig. 57.]]

Fig. 57.

The first and third species may be mixed, as in [Fig. 58.]

Fig. 58.