World-famous cellist Yo-Yo Ma and famed soprano Renee Fleming, left, perform with a choir of dozens of high school students in the rotunda of the State of Illinois building, the James R. Thompson Center, Monday, March 19, 2012, in Chicago. The Monday afternoon performance was to promote the Chicago Symphony Orchestra’s Citizen Musician initiative. The Lyric Opera of Chicago also sponsored the event and Illinois Gov. Pat Quinn attended. (AP Photo/Kiichiro Sato)