Dennis Russell Davies (born 16 April 1944, Toledo, Ohio, U.S.) is an American conductor and pianist. He studied piano and conducting at the Juilliard School where he received his doctorate. He is a noted champion of living composers and modern music including Hans Werner Henze, William Bolcom, Lou Harrison, Alan Hovhaness, John Cage, Philip Glass, Giya Kancheli, Arvo Pärt, Virgil Thomson, and Aaron Copland. He has commissioned, premiered and recorded numerous pieces by living composers, along with the standard classical works. Of note are the recordings of Copland's Appalachian Spring with the Saint Paul Chamber Orchestra in 1979 for which he won a Grammy Award; Arvo Pärt Fratres and Miserere; and many of Philip Glass's operas and symphonies including his 5th symphony which is dedicated to Davies.