advocacy of consonance
Counterpoint: Counterpoint in the Middle Ages
During the 13th century such contrasts were carried still further in the motet, a musical form usually in three voice parts, each in a different rhythmic mode. The theorist Franco of Cologne advocated the use of consonance at the beginning of each measure; such consonances (usually a chord made up of the unison, fifth, and octave, such as C–G–C) served as fixed pillars in terms of...