Austrian composer, theorist and a principal figure on the Second Viennese School.
Initially he wrote in a late Romantic style (as in his Verklärte Nacht) but he then developed the famous twelve-note, serial and atonal method of composition. His Five Piano Pieces, Op 23 and The Serenade, Op 24 are both written in this form. He fled the Nazis and settled in California, where he died.
