How many singers are required before the group is considered an a cappella chorus? a. four singers total are needed. b. only one or two singers per part are all that is needed. c. the number of singers can vary. d. there should be 8–10 singers to a part.

Choose mozart or beethoven and describe in detail the contributions that he made to the classical era. be sure to include important musical compositions, classical characteristics commonly found in his works, and primary elements of his compositional style.