Bernstein was named the music director of the New York Philharmonic in 1957, replacing Dimitri Mitropoulos. He began his tenure in that position in 1958, having held the post jointly with Mitropoulos from 1957 to 1958. In 1958, Bernstein and Mitropoulos took the New York Philharmonic on tour to South America. In his first season in sole charge, Bernstein included a season-long survey of American classical music. Themed programming of this sort was fairly novel at that time compared to the present day. Bernstein held the music directorship until 1969 (with a sabbatical in 1965) although he continued to conduct and make recordings with the orchestra for the rest of his life and was appointed "laureate conductor".