La Traviata, Act II: Invitato a qui seguirmi — Georges Prêtre, Montserrat Caballé, Carlo Bergonzi, Sherrill Milnes, Dorothy Krebill, Fernando Iacopucci, Gene Boucher, Nancy Stokes, Harold Enns, Thomas Jamerson, Flavio Tosin, RCA Italiana Opera Orchestra & RCA Italiana Opera Chorus