Verse-chorus form:
a. is rarely used in popular music, since it is almost exclusively identified with classical music styles
b. is one of the most popular musical forms in many cultures
c. is a cyclic form used in Balinese gamelan music
d. is especially prominent in BaMbuti elephant hunting songs

In nineteenth-century opera, the orchestra: a. became less important as vocal lines became more important. b. was reduced to a small group as opera houses became smaller. c. became more important than the vocal lines; the voices now accompanied the orchestra. d. increased in importance, sometimes providing special effects and overshadowing the voices.