Anton Webern (; 3 December 1883 – 15 September 1945) was an Austrian
composer and
conductor. Along with his mentor
Arnold Schoenberg and his colleague
Alban Berg, Webern comprised the core among those within and more peripheral to the circle of the
Second Viennese School, including
Ernst Krenek and
Theodor W. Adorno. As an exponent of
atonality and
twelve-tone technique, Webern exerted influence on contemporaries
Luigi Dallapiccola, Krenek, and even Schoenberg himself. As tutor Webern guided and variously influenced
Arnold Elston,
Frederick Dorian (Friederich Deutsch), Fré Focke,
Philipp Herschkowitz,
René Leibowitz,
Humphrey Searle,
Leopold Spinner, and
Stefan Wolpe.