Who was one of the first Russian composers to create "Russian" music?

The Mbuti Pygmy "Marriage Celebration Song" uses a call-and-response unit that repeats over and over to create a(n)

a. overture. b. virtuoso. c. ostinato. d. none of the above

Which is not a general characteristic of Native American music??

a. ?polyphony b. ?predominantly vocal music c. ?use of vocables d. ?use of drums and rattles