The Chicago Symphony Orchestra will perform Tone Poems by Smetana about his Bohemian homeland, 8:00 Thursday and Saturday night, and 1:30 Friday afternoon, May 18th, 19th and 20th at the Symphony Center, 220 South Michigan. Thursday night's performance will be proceeded by a classic encounter program hosted by XRT's Terri Hemmert. For ticket information, visit cso.org