Sonya Yoncheva sings Violetta’s Act III aria from La Traviata. Sonya Yoncheva reprises her widely praised interpretation of the heroine Violetta Valéry in Verdi’s La Traviata. Michael Fabiano is her lover, Alfredo, Thomas Hampson, in one of his most acclaimed Met roles, returns as Alfredo’s protective father, Giorgio Germont. San Francisco Opera Music Director Nicola Luisotti conducts.