Tolong jelaskan mengenai Catatan dari Grand Ole Opry

Kingsbury, Paul (1998). "Grand Ole Opry". In The Encyclopedia of Country Music. Paul Kingsbury, Editor. New York: Oxford University Press. pp. 208–9.

Wolfe, Charles K. A Good-Natured Riot: The Birth of the Grand Ole Opry. Nashville: Country Music Foundation Press, 1999. .