Chicago Symphony Orchestra

The Chicago Symphony Orchestra (CSO) is an American symphony orchestra based in Chicago, Illinois. Founded by Theodore Thomas in 1891, the ensemble has been based in the Symphony Center since 1904 and plays a summer season at the Ravinia Festival. The orchestra's most recent music director is Riccardo Muti, whose tenure spanned 13 seasons, from 2010–2023. The CSO is one of the American orchestras commonly referred to as the "Big Five". History In 1890, Charles Norman Fay, a Chicago businessman, invited Theodore Thomas to establish an orchestra in Chicago. Under the name "Chicago Orchestra," the orchestra played its first concert October 16, 1891 at the Auditorium Theater. It is one of the oldest orchestras in the United States, along with the New York Philharmonic, the Boston Symphony Orchestra and the Saint Louis Symphony Orchestra. Orchestra Hall, now a component of the Symphony Center complex, was designed by Chicago architect Daniel H. Burnham and completed in 1904. Maestro Thomas served as music director for thirteen years until his death shortly after the orchestra's newly built residence was dedicated December 14, 1904. The orchestra was renamed "Theodore Thomas Orchestra" in 1905 and today, Orchestra Hall still has "Theodore Thomas Orchestra Hall" inscribed in its façade.