Old Bridge Chamber Orchestra, Gainesville Community Choir, South Loudoun Youth Chorale Three powerhouse ensembles combine to create an experience of joy, beauty, and community in song. A full orchestra and 250 singers join forces in this epic one-night-only concert, performing a major work by acclaimed choral composer Dan Forrest, Lux: the Dawn from On High, as well as a variety of selections ranging from Mozart’s Requiem to video game soundtrack, and more. Old Bridge Chamber Orchestra, Gainesville Community Choir, and…