A Treatise on Simple Counterpoint in Forty Lessons - LightNovelsOnl.com
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[Ill.u.s.tration: Fig. 116.]
When the syncopation is a suspension or r.e.t.a.r.dation, it is treated the same as in harmony.
The r.e.t.a.r.dation should always be prepared by the leading-tone.
When the syncopated note belongs to the harmony of the measure, it may be left by a skip or stepwise progression. [Fig. 117.]
[Ill.u.s.tration: Fig. 117.]
The third may be omitted on the strong beat in this species, provided the part having fourth species skips to the missing third, as at Fig. 117_a_.
Consecutive fifths, but not octaves, are saved by the suspension. Whenever they occur, do not use the note of resolution as preparation of a suspension, or tie it into the next measure (_a_), since it is really the pa.s.sing seventh, and that does not lend itself well to either of the above, except in sequence as at _b_. [Fig. 118.]
[Ill.u.s.tration: Fig. 118.]
The seventh or ninth of a chord, except the major seventh, may be used as preparation of a suspension when approached by a skip in an upward direction, as in Fig. 119.
[Ill.u.s.tration: Fig. 119.]
This species may also be written in triple rhythm. [Fig. 120.]
[Ill.u.s.tration: Fig. 120.]
The cadences in Fig. 121 are good, as well as those of the second species.
[Ill.u.s.tration: Fig. 121.]
EXERCISES
To cantus firmus _a_ write fourth species in one part. Write three settings, as usual.
To cantus firmus _b_ write fourth species in one part in triple rhythm.
Write three settings, as above.
To cantus firmus _b_ write second species in one part and third in the other. [Fig. 122.]
[Ill.u.s.tration: Fig. 122.]
CANTI FIRMI
[Ill.u.s.tration: Fig. 123.]
LESSON XVIII
FOURTH SPECIES (Continued)
EXERCISES
Write two eight-measure phrases, using the fourth species mixed in all parts. [Fig. 124_a_.]
To cantus firmus _a_ write second species in one part and fourth in the other. [Fig. 124_b_.]
To cantus firmus _b_ write third species in one part and fourth in the other. [Fig. 124_c_.]
[Ill.u.s.tration: Fig. 124.]
CANTI FIRMI
[Ill.u.s.tration: Fig. 125.]
LESSON XIX
FIFTH SPECIES
[Ill.u.s.tration: Fig. 126.]
No suggestions other than have already been given for two- and three-part counterpoint are necessary for this species.
EXERCISES
To canti firmi _a_ and _b_ write fifth species in one part. Write each three times, as usual.
CANTI FIRMI
[Ill.u.s.tration: Fig. 127.]
LESSON XX
FIFTH SPECIES (Continued)
EXERCISES
