Members of the Marine Corps Base Quantico, Va., Marine Corps Band practice during the weather delay at U.S. Marine Day at Nationals Park in Washington May 8. A group of band members played a selection of upbeat jazzy tunes for the crowds before the game. - Members of the Marine Corps Base Quantico, Va., Marine Corps Band practice during the weather delay at U.S. Marine Day at Nationals Park in Washington May 8. A group of band members played a selection of upbeat jazzy tunes for the crowds before the game.