Master Sgt. James DeVaughn, U.S. Air Force Band audio engineer, controls audio levels throughout the U.S. Air Force Band’s 75th Anniversary celebration June 11, 2016, at George Mason University’s Center for the Arts Concert Hall in Fairfax, Va. DeVaughn was one of five audio engineers playing a behind-the-scenes role during the concert. (U.S. Air Force photo by Airman 1st Class Philip Bryant)