(Photo: © Monika Rittershaus) “Don Giovanni” is an opera of seductions and escapes, moral wreckage and divine retribution, a shimmering mosaic of comedy, tragedy, farce, and existential dread. Yet “the mother of all operas” is also a uniquely treacherous work—at once alluring and intractable, irresistibly open yet elusive. Music’s sublimity rarely fails to connect with audiences, even in a less-than-stellar {…}