Voice and Language: Prologue pour un Marco Polo, Luci mie traditrici and The Difficulty of Crossing a Field
Amy Bauer, excerpt "Contemporary opera and the failure of language,"The Routledge Research Companion to Modernism in Music, ed. Björn Heile and Charles Wilson, Farnham: UK: Ashgate/Routledge, 2019, 435-37.
Amy Bauer, excerpt "Contemporary opera and the failure of language,"The Routledge Research Companion to Modernism in Music, ed. Björn Heile and Charles Wilson, Farnham: UK: Ashgate/Routledge, 2019, 439-42.
Amy Bauer, "'The Mysteries of Selma, Alabama.' Re-telling and Remembrance in David Lang's The Difficulty of Crossing a Field,"In Search of the 'Great American Opera': tendenzen der americanischen Musicheaters, Gregory Herzfeld and Frederic Döhl, ed. Münster and New York: Waxman-Verlag, 2016.

Prologue pour un Marco Polo, Claude Vivier
Luci mie traditrici, Salvatore Sciarrino
The Difficulty of Crossing a Field, David Lang, Trailer Long Beach Opera
The Difficulty of Crossing a Field, David Lang, Trailer Montclaire

Further Reading
Christian Utz, "Statische Allegorie und Sog der Zeit': Zur strukturalistischen Semantik in Salvatore Sciarrinos Oper Luci mie traditrici,"Musik & Ästhetik,14/1 (2010), 37-60.
Lucia D'Errico, "How to Produce a Phantasm? Part III: Salvatore Sciarrino,"An Experimental Approach to Music Performance,(Leuven: Leuven University Press, 2018), 111-17.
Scores