Premise: The Gospel According to the Other Mary is an opera/oratorio by contemporary American composer John Adams. The world premiere took place on May 31, 2012, at the Walt Disney Concert Hall in Los Angeles with Gustavo Dudamel conducting the Los Angeles Philharmonic who also premiered the staged version on March 7, 2013, at the same venue.
Hypothesis: There was singing at the premiere of the Gospel According to the Other Mary.