List three traits that the canso, chanson, Minnesang, and cantiga have in common?

Of the various characters heard in this selection, what is the one characterized by the simplest melodic style?

a) Donna Anna b) the Commendatore c) Donna Elvira d) Leporello

How many voices are in William Byrd's "Sing Joyfully"?

a) three b) four c) five d) six