This composer wrote a canon vertically centered on A4 in the brief second movement of one work.
This composer wrote a canon vertically centered on A4 in the brief second movement of one work. This composer wrote  his PhD thesis on the works of Heinrich Isaac, which he incorporated into his two-movement symphony dedicated to his  daughter Christine, which contains nested palindromes. The tone row's retrograde and inversion are equivalent in this  composer's String Quartet, which is constructed of inversions and transpositions of the B-A-C-H motif. By splitting the  opening theme between the trombone, horn, and trumpet in orchestrating Bach's six-part ricercare from the Musical  Offering, this composer illustrated his teacher's concept of Klangfarbenmelodie. His Concerto for (*)  Nine Instruments illustrates both his use of the twelve-tone system and his noted brevity. During the Allied occupation of Austria, this composer  was killed by an American soldier. For  10 points, name this Second Viennese school composer, a student of Schoenberg.
This composer wrote a canon vertically centered on A4 in the brief second movement of one work.
Anton Webern