The Influence of Centers and Peripheries on Popular Music Evolution from the 1950s to the 1990s

Discuss theme below how it has affected popular music from the 1950s through the 1990s. You will need to provide multiple examples related to the theme from each decade.
Centers and Peripheries This topic refers to the relationship between “mainstream” culture and its tendency to absorb cultural practices and styles that originate in minority communities. What are the primary centers of music production and why? Why do musical styles shift from the peripheries of society to the center or “mainstream” and what happens to the music when they do?