Answer:
an organum is a form of early polyphony based on an existing plainsong.
a polyphony is the style of simultaneously combining a number of parts, each forming an individual melody and harmonizing with each other.
a gregorian chant is church music sung as a single vocal line in free rhythm and a restricted scale (plainsong), in a style developed for the medieval Latin liturgy.
Explanation:
“Alcaic, classical Greek poetic stanza composed of four lines of varied metrical feet, with five long syllables in the first two lines, four in the third and fourth lines, and an unaccented syllable at the beginning of the first three lines “ not sure if that helps or not
The best thing to do is to use transitions. But you did not give any of the following