One of the Finnish composer Jean Sibelius’s most famous pieces, the Second Symphony evokes the beauty of his native Finland. You can hear it at the Cleveland Orchestra’s season-opening performance. The orchestra will also play Aaron Copland’s Organ Symphony and Charles Ives’s Symphony No. 3. The concert takes place at 7:30 tonight and at 8 tomorrow night at Severance Hall, and tickets start at $29. (Niesel)