Sixty-six members of the Statesboro High School Blue Devil Marching Band and 14 chaperones are scheduled to board two chartered buses tonight for just about the fullest Fourth of July experience imaginable in Washington, D.C. If all goes as planned, band members will lay a wreath Tuesday at the Tomb of the Unknowns in Arlington National Cemetery and then cap what would seem a rich enough Fourth on Wednesday by taking in the National Symphony concert and fireworks show on the Capitol lawn. But of course, the centerpiece of the trip will be marching and playing in the National Independence Day Parade. Organizers of the parade, which is hosted by the National Park Service, invite high school bands from all the states based on recommendations from governors’ offices and music educators.