U.S. Army Spc. John Watson, U.S. Army Training and Doctrine Command Band bass guitarist, plays the bass during a holiday concert at Joint Base Langley-Eustis, Virginia, Dec. 12, 2019. The band serves as an outreach asset for the TRADOC by performing numerous concerts in support of local, regional and national events. (U.S. Air Force photo by Senior Airman Tristan Biese)