Members of Marine Corps Band New Orleans provide Master music classes to students from the Conservatorio de Musica de Puerto Rico in San Juan, before kicking off the Marine Corps Reserve Centennial celebration concert Oct. 18, 2016. The classes showed the students how a professional military band plays, while also allowing them to learn about the history of the Marine Corps Reserves. The Marine Corps Reserve is commemorating 100 years of rich history, heritage, espirit-de-corps, and a bond with Puerto Rico and communities across the U.S. The celebration recognizes the Reserve's essential role as a crisis response force and expeditionary force in readiness, constantly preparing to augment the active component. (U.S. Marine photo by Sgt. Sara Graham/Released)