[724] Eagleton, Terry. Literary Theory: An Introduction. Minneapolis: University of Minnesota Press, 1983.

[1293] Lena, J. C., and R. A. Peterson. "Politically-Purposed Music Genres." American Behavioral Scientist 55, no. 5 (2011): 574-588.

[916] Romano, Dennis. "Commentary: Why Opera? The Politics of an Emerging Genre." Journal of Interdisciplinary History 36 (2006): 401-409.