The Marshall Field's Day of Music, which is sponsored by the department store, will begin at 2 p.m. with a concert by the CSO led by music director Daniel Barenboim and featuring pianist Lang Lang. The program includes Mozart's Piano Concerto No. 24 and Flute Concerto No. 1, Elliott Carter's Soundings, and Schoenberg's Variations for Orchestra.

Additional performances, including jazz, world music, and family programs, will continue at Symphony Center throughout the day. They include a choral sing-along with Civic Orchestra of Chicago, a duo recital by Barenboim and Lang Lang, and performances by the CSO Family Ensemble, the CSO Chamber Ensemble, the Chicago Sinfonietta Chamber Ensemble, and ragtime pianist Reginald Robinson, the winner of a 2004 MacArthur "genius" grant.

The events are free; no tickets are required. A complete schedule is available at CSO.org.