The earliest form of polyphony is called

Among the Yoruba of Nigeria bird images represented this type of ancestor

A. paternal B. maternal C. cousins D. paternal grandfather E. all of the above

One of the most famous panels on the ceiling of the Sistine Chapel, partly because of its use of negative space, is

A) ?The Creation of Adam. B) ?The Last Supper. C) ?The Last Judgment. D) ?Moses.