which musical elements developed significantly during the ars nova? which did not? expanded during ars nova…

Brief Explanations:

During the Ars nova (14th - century in music), rhythm, meter, and harmony saw significant expansion. New rhythmic notations and complex metrical structures were developed, and harmony became more sophisticated. Counterpoint had already developed in earlier periods and did not see as significant an expansion during Ars nova. Dynamics as a musical element was not a major focus of development during this time either.

Answer:

Expanded During Ars nova: rhythm, meter, harmony Not Expanded During Ars nova: counterpoint, dynamics