Lucia di Lammermoor: Atto I. “Cruda, funesta smania” / “La pietade in suo favore” (Enrico, Normanno, Raimondo) - Chorus of the Royal Opera House, Covent Garden, Nicolaï Ghiaurov, Sherrill Milnes, Pier Francesco Poli, Orchestra of the Royal Opera House, Covent Garden, Richard Bonynge