Met opera bass-baritone David Pittsinger commissioned Scott Eyerly to write a piece for David and his son Richard, a boy soprano who also has an international career. The Pittsingers talk about Eyerly's "Arlington Sons" which they perform in the work's orchestral premiere with the PSO. It honors David's grandfather, a guard at the Tomb of the Unknowns. The two singers talk about their careers, in David's case including a long assocition with Pittsburgh Opera and its former General Director Tito Capobianco.