For its sixth season, the Cleveland Orchestra offers four beautiful, hand-selected programs of music in July and August, including Songs of a Wayfarer (July 12), Romero Plays Rodrigo (July 19), Mozart’s Great Mass (Aug. 2) and Viva L’Italia (Aug. 16) with a special bonus of Batman (1989) Live in Concert (Aug. 23). Following the concerts, linger in the cool summer evening for an after-party on Severance Hall’s beautiful outdoor terrace.