Mezue ahịrịokwu na-esonụ: N'afọ 1953, Treigle mere New York City Opera nke mbụ ya, dị ka Colline na "La bohème". Afọ atọ mgbe nke ahụ gasịrị, bass-baritone ahụ nwetara ihe ịga nke ọma mbụ ya dị mkpa, dị ka Reverend Olin Blitch a tara ahụhụ, na New York premiere nke "Susannah" nke Floyd. O mere ihe ngosi mbụ ya na Europe n'otu opera a, na
Ihe ngosi ụwa nke Brussels, na 1958.