Philip Glass is planning to compose an opera about the Civil War, specifically about the surrender at Appomattox Court House. One question: Will he base his operatic interpretation on the mythology of the surrender as it relates to reconciliation or will he base it on more recent studies that suggest a lingering bitterness? Obviously, this is not a serious question; regardless of his interpretation much of his music sounds the same to me. Still, I will give it a listen. How about a rock opera composed by Pete Townsend? What would that sound like?