Describe an exception to the standard doubling stated above. When is it appropriate to use this irregular doubling?

What do you hear in this excerpt?

a. repeating the same melody exactly b. sequence c, changes of timbre d. a gradual crescendo

Mise en scène was originally a French theatrical term meaning

A. in three dimensions. B. under the proscenium arch. C. in the middle of the scene. D. placing on stage.