Igor Stravinsky's Oedipus premiered in Paris in 1927, set in a concert hall as an oratorio. A year later in Vienna it was presented as an opera, and it works successfully both ways.
The plot follows Sophocles, the classic story of hubris punished. Oedipus unknowingly kills his father, marries his mother, and as king must find the cause of the plague of Thebes, the city he rules. Though warned not to pursue the truth, he does so, only to find that indeed it is his actions that are responsible. He blinds himself and retreats from the city.
The version we have tonight is in Latin with Jean Cocteau's original French narration.