For 10 points, identify this composer of Dr. Atomic and Nixon in China.
This composer shares his last name with that of the one who composed The Mathematics of Resonant Bodies. One of his short piano pieces was written for Gary Ohlssohn after they worked together on the Copeland Piano Concerto. Another work by this man originated as a piece called Wavemaker and has a second movement titled Hymning Slews. In addition to American Berserk, one of his choral works uses the word "Missing..." and the phrase "I see water and buildings" as well as missing person posters to commemorate the victims of a terrorist attack in 2001. Another of his compositions features a foxtrot that was adapted into the "Chairman Dances." For 10 points, identify this composer of Dr. Atomic and Nixon in China.
This composer shares his last name with that of the one who composed The Mathematics of Resonant Bodies.
John {Adams}