This is one of my favorite Bugs Bunny cartoons. It's a very clever send-up of Wagnerian operas. (There is also one where Bugs and Elmer perform the Barber of Seville, but my recollection is that that opera was done better by Woody Woodpecker.) The fact that I'm not a big fan of Wagner may have something to do with my enjoyment, but I recommend watching this if you get a chance. We have it in a tape that contains several Bugs Bunny cartoons.