Both the Cleveland Orchestra Chorus and the Cleveland Orchestra will perform tonight at Severance Hall as part of a program dubbed Divine Ecstasy. The concert will include pieces by Gabrieli, Part, Kernis, Bach and Liszt. Billed as "an evening of works exploring musical, religious and mystical ecstasy, and their interrelationship with human meditation, transcendence and understanding," the concert begins at 8. Consult the orchestra website for ticket prices. (Niesel)