The September 11th tribute "This Mourning"—one of his most notable works—was commissioned by the Washington Chorus and is scored for 250 singers, full orchestra and a consort of 40 crystal glasses. This premiere took place at the main stage of the Kennedy Center in Washington D.C. in late November 2006. Among his other notable pieces is his concerto for flute, flute choir, and wind ensemble "The Shadow of Sirius", which was written to commemorate the loss of his child through miscarriage.