Vienna’s hapless missing link

● HAS THERE EVER BEEN an unluckier composer than Alexander Zemlinsky? Mentored by Brahms, commissioned by Mahler, Zemlinsky gave music lessons to Arnold Schoenberg and Erich Korngold and wrote orchestral suites that were literally the last word in late romanticism as the world hurled itself into the 1920s he did more than anyone to advance modern opera in Prague and Berlin, narrowly escaping Hitler’s clutches in 1939. But with each step up the ladder, Zemlinsky hit a snake. Mahler left Vienna months after he signed on. His students outshone him, opera houses took