For 10 points, name this opera about the title courtesan, by Alban Berg.
This opera pioneered the usage of the vibraphone in the orchestra instead of purely in jazz compositions. One character in this opera notably responds to a declaration of love by murmuring "I poisoned your mother"; that character also asks "Isn't that the sofa on which your father bled to death?" in a spoken line marked casual, or "beiläufig." In one scene from Act III of this opera, a crowd panics in the (*) gaming room after learning the price of Jungfrau cable railway shares has collapsed. The central character of this opera is admired by characters like the Countess Geschewitz, Alwa, and Alwa's father, Dr. Schon; that character is finally killed by her client Jack the Ripper. For 10 points, name this opera about the title courtesan, by Alban Berg.
This opera pioneered the usage of the vibraphone in the orchestra instead of purely in jazz compositions.
Lulu