Willy Decker’s Traviata premiered in Salzburg in 2005 with Rolando Villazón and Anna Netrebko. It had already generated huge DVD sales and had become one of the most iconic contemporary productions across the opera world when Peter Gelb picked it up in 2010 for the Metropolitan Opera, consequently getting rid of the cherished but aging 1996 Franco Zeffirelli’s production. Needless to say, even though New...