“Preludes to a Lost Time”: Gidon Kremer travels alone to the dark heart of an obsession, as he performs Weinberg’s 24 unaccompanied Preludes in front of ever-changing images by the Lithuanian photographer Antanas Sutkus. The music asks questions; the pictures offer a path to an answer. This hour-long recital from one of the world’s greatest living musicians could stay with you for a lifetime.