Riccardo Muti, now ailing, was hale and hearty at a season-opening concert last fall. | Scott Stewart~Sun-Times

2/22/11 5:40:59 PM Chicago Symphony Orchestra Music Director Riccardo Muti and CSO president Deborah Rutter talk with Northwestern Memorial Hospital president and chief executive Dean M. Harrison, following a concert performed for the doctors and staff at Northwestern as a thank you for treating the Maestro. ©Todd Rosenberg Photography 2011

Music Director Riccardo Muti, conducts the National Anthem before Friday's evening free concert at Millennium Park. | Scott Stewart~Sun-Times Media