It is impossible to isolate the history of black people in this country to a single expression but since we deal with music, we are going to go with what we know. The history of the American recording industry is largely (if not completely) influenced by the African-American experience. This spans so many styles and eras that it would difficult to dive into them all. So what we did was create The Black History Collection in the Zune Marketplace to celebrate the contributions and commemorate the struggles...