In 2004 Gordon released "Light Is Calling" (Nonesuch), an album of tracks created with producers R. Luke DuBois and Damian LeGassick, and scored for a small ensemble of musicians (most notably Todd Reynolds on violin) with complex electronic arrangements orchestrated by DuBois and LeGassick. He has since collaborated with DuBois extensively on the electronic backing arrangements for subsequent pieces, including "All Vows" for cellist Maya Beiser (2006, for which DuBois also served as a video artist), "Sad Park" for the Kronos Quartet (2006), and the opera "What to Wear", libretto by Richard Foreman (2006). "The Sad Park" uses the voices of child witnesses to September 11 as its subject.