Airmen in the clarinet section of the U.S. Air Force Band rehearse for the first concert of their 2014 Spring Tour at the College of DuPage in Glen Ellyn, Ill, April 4, 2014. The clarinets show off their section’s skills during a featured group performance during the show. (U.S. Air Force photo/Airman 1st Class Joshua R. M. Dewberry)