What is the progression of performing forces in this selection?
a) it consistently is a duet
b) begins as a duet and ends as a trio
c) it consistently is a trio
d) it begins as an aria and ends as a duet
Question 2
Which twelfth-century composer at work in Paris is credited with, however rare, having written four-voice polyphony?
a) Lonin
b) Franco of Cologne
c) Anonymous IV
d) Protin