Montezuma (Sessions opera)
Montezuma is an opera in three acts by the American composer Roger Sessions, with an English libretto by Giuseppe Antonio Borgese that incorporates bits of the Aztec language, Nahuatl, as well as Spanish, Latin, and French.
Though Sessions did not receive Borgese's libretto (in first draft) until 1941, and work on the opera proceeded in an irregular fashion after ("Sessions thought that the end of his labor was in sight in the summer of 1952. He was mistaken, and the work on Montezuma was suspended"), the opera incorporates, essentially unchanged, sketches (from Sessions' notebooks) dating from the late 1930s, and was completed on October 15, 1963.