Modernist Music Theater, Modernist Opera, Postmodern Opera
Paul Griffiths, "Music Theater," Modern Music and After. Oxford: Oxford University Press, 2011.
Eric Salzman and Thomas Desi, "Toward a Theory of the New Music Theater," The New Music Theater. Seeing the Voice, Hearing the Body. Oxford: Oxford University Press, 2008.
Arnold Whittall, “New Opera, Old Opera: Perspectives on Critical Interpretation,” Cambridge Opera Journal 21/2 (2010), 181-98.
Tom Sutcliffe, "21st-century opera - going for a song," in Belivieing in Opera, Princeton: Princeton University Press, 2014.
Further Reading
Herbert Lindenberger, "Towards a Characterization of Modern Opera," Modernist Cultures 2/1 (2007), 84-93.
Wayne Heisler Jr., "Are 'Works' Enough?," The Opera Quarterly 35/1-2 (2019), 135–38
Björn Heile, “Recent Approaches to Experimental Music Theatre and Contemporary Opera,” Music and Letters 87/1 (2006), 72–81.