Alban Berg (born Vienna, 9 February 1885; died Vienna 24 December 1935) was an Austrian composer. Alban Berg and Anton Webern were both pupils of Arnold Schoenberg. All three composers in their own way changed the style of musical composition in the early 20th century. They grew up at a time when most composers were still writing Romantic music, but Schoenberg and his pupils started to write atonal music (music which is not in any key) and then twelve-tone music in which all 12 notes in an octave are of the same importance. Although Berg wrote a lot of twelve-tone music he still managed to make it sound quite Romantic at times, more so than Schoenberg or Webern. His most important works are his two operas "Wozzeck" and "Lulu" and his "Violin Concerto".