Which term referring to American folk music was coined first?

Which student of renowned veteran jazz pianist Jaki Byard embraced the avant-garde, classicism, and populism along with his jazz roots to create new kinds of listening experiences?

a. Geri Allen b. Jason Moran c. John Zorn d. Cassandra Wilson

In this selection we hear alternation between?

a. ?two male vocal soloists. b. ?a male soloist with a female chorus. c. ?male and female soloists with male and female choruses. d. ?a female soloist with a male chorus.