619 days ago - Their combined brilliance is astounding. Two of America’s greatest living mezzos, Frederica von Stade and Marilyn Horne, are about to join forces with superb Verdi baritone Vladimir Chernov, stage director and former San Francisco Opera General Manager Lofti Mansouri, fast-rising gifted soprano Melody Moore and San Francisco Symphony’s own Peter Grunberg to present two evenings of “Pauline Viardot and Friends.” These will be nights to remember.