For 10 points, name this German composer of Mathis der Maler.
This composer wrote the absurd metronome marking of quarter note equals 600 to 640, with the additional instruction, "tonal beauty is of secondary importance," in the second of his four sonatas for unaccompanied viola, an instrument for which he wrote a concerto based on German folksongs. The song "Es sungen drei Engel" serves as a cantus firmus in the first movement of his symphony based on an opera that he had unsuccessfully tried to premiere in Nazi Germany. In addition to the viola concerto "The Swan-Turner" and Kammermusik, he wrote a piece that contains a scherzo based on an earlier composer's incidental music for Carlo Gozzi's play Turandot. That piece is his Symphonic Metamorphosis of Themes by Carl Maria von Weber. For 10 points, name this German composer of Mathis der Maler.
This composer wrote the absurd metronome marking of quarter note equals 600 to 640, with the additional instruction, "tonal beauty is of secondary importance," in the second of his four sonatas for unaccompanied viola, an instrument for which he wrote a concerto based on German folksongs.
Paul Hindemith