Do you cringe when your opera-loving friends start raving about the latest production of Tristan? Do you feel faint just thinking about the six-hour performance of Parsifal you were given tickets to? Does your mate accuse you of having a Tannhäuser complex? If you're baffled by the behavior of Wagner worshipers, if you've longed to fathom the mysteries of Wagner's ever-increasing popularity, or if you just want to better understand and enjoy the performances you're attending, you'll find this...