Repertoire: Recorded at Orchestra Hall on Sept. 18, 2014, under Riccardo Muti, the CSO’s performance of Beethoven’s Ninth features the Chicago Symphony Chorus (prepared by Chorus Director Duain Wolfe), and vocal soloists soprano Camilla Nylund, mezzo-soprano Ekaterina Gubanova, tenor Matthew Polenzani, and bass-baritone Eric Owens. The performance opened the CSO’s 2014-15 season.