In the state's largest urban areas, pockets of jazz culture flourish, and Native American, Mexican, and Asian enclaves produce music and art of their respective cultures. The Oklahoma Mozart Festival in Bartlesville is one of the largest classical music festivals in the southern United States, and Oklahoma City's Festival of the Arts has been named one of the top fine arts festivals in the nation. The Tulsa Ballet, one of the state's five major city ballet companies, is rated as one of the top ballet companies in the United States by the New York Times. The University of Oklahoma's dance program, formed by ballerina Yvonne Chouteau and husband Miguel Terekhov in 1962 was the first fully-accredited program of its kind in the United States. In Sand Springs, an outdoor amphitheater called "Discoveryland!" is the official performance headquarters for the musical Oklahoma! Historically, the state has produced musical styles such as The Tulsa Sound and Western Swing, which was popularized at Cain's Ballroom in Tulsa. The building, known as the "Carnegie Hall of Western Swing", served as the performance headquarters of Bob Wills and the Texas Playboys during the 1930s.