19. It is thought to represent a battle between the Hero and Fate. 20. It is an example of sacred music.
21. It must be modified to be played on a modern instrument
22. Its melodic leaps are filled in with more and more notes as the piece proceeds.

(18. is E I think) and (19 maybe A) (20. B) (21. D) (22.C)

Explanation: It's an aducated guess

i believe the correct answer is: must sculpture be beautiful to be considered art?

the aesthetics represents the exploring of beauty and taste of nature in art, with the creation and appreciation of beauty. having that in mind, i believe the appropriate aesthetic question you could ask about gianlorenzo bernini’s sculpture david is “must sculpture be beautiful to be considered art? ”.