Anton von Webern (1883-1945) was an Austrian composer and conductor, associated with the Second Viennese School alongside Arnold Schoenberg and Alban Berg. He is known for his contributions to the twelve-tone technique and is recognized for his innovations in musical form and texture. Webern's music is characterized by its brevity, clarity, and use of silence, often exploring emotional depth within concise structures. Notable works include his orchestral pieces such as "Six Pieces for Orchestra" (1913), "Symphony, Op. 21" (1928), and "Concerto for Nine Instruments" (1934). His chamber works, including "String Quartet, Op. 28" and "Variations for Klavier, Op. 27," also exemplify his unique style. Webern's impact on music is profound; he influenced later composers and movements, particularly in the realms of minimalism and post-serialism. His focus on the spatial and sonic qualities of music paved the way for experimental and avant-garde music in the 20th century. Although his output was limited, his works are celebrated for their intricate craftsmanship and continue to be studied and performed widely.