In what kind of work would one most likely expect to encounter the technique of the idée fixe?

Which of the following statements are true of disharmony?

A) It is inappropriate when depicting disturbing subject matter. B) Its definition has remained unchanged throughout all art movements. C) It does not affect visual impact. D) It is usually less expressive than harmony. E) None of these answers are correct.

The Romans adopted many of the same instruments as those already played by the Greeks. The tibia was their version of the Greek ________

a. kithara b. monochord c. lyre d. aulos