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James Charles Barnes (born September 9, 1949 in Hobart, Oklahoma, U.S.) is an American composer. Barnes studied composition and music theory at the University of Kansas, earning a Bachelor of Music in 1974, and Master of Music in 1975. He studied conducting privately with . In 1977 he joined the faculty at the University of Kansas as professor of music theory and composition. He retired in August 2015, but retains his emeritus status at U. of K. Barnes is also a tubist and has performed with numerous professional organizations in the United States.