Answer: webern

AnswerCrossword Clue
WEBERNTwelve-tone composer Anton
WEBERNViennese composer
WEBERNAustrian composer: 1883-1945
WEBERNNoted Viennese composer
WEBERNComposer of "Das Augenlicht," 1935
WEBERNComposer Anton who used the 12-tone technique