Anton Webern (1883 - 1945)

Autriche

Anton Webern (3 December 1883 – 15 September 1945) was an Austrian composer and conductor. He was a member of the Second Viennese School. As a student and significant follower of Arnold Schoenberg, he became one of the best-known exponents of the twelve-tone technique; in addition, his innovations regarding schematic organization of pitch, rhythm and dynamics were formative in the musical technique later known as total serialism.
Source : Wikipedia