U.S. Air Force Band audio engineers, Master Sgt. Adam Dempsey (right) and Master Sgt. David Graves pack up communication equipment following the Air Force Ceremonial Element rehearsal for the 57th Presidential Inaugural parade on Joint Base Andrews, Md., Jan. 11, 2013. Graves and Dempsey make up the six-man team of audio engineers who support the band. Dempsey is a native of Dexter, Mich., and Graves hails from Eugene, Ore. (U.S. Air Force photo by 1st Lt. Ashleigh Peck)