From left, U.S. Air Force Staff Sgt. Michael Burks, 1st Maintenance Squadron precision measurement equipment lab technician, and U.S. Air Force Tech. Sgt. Daniel Santos, U.S. Air Force Heritage Band of America guitarist, learn guitar chords at Joint Base Langley-Eustis, Virginia, July 31, 2018. The course aims to teach beginners the basics of guitar-playing by learning chord charts and sheet music. (U.S. Air Force photo by Airman 1st Class Monica Roybal)