Maria Callas and Giuseppe Di Stefano team up on Angel Records for Duos d’opéras italiens — a concentrated recital of Vincenzo Bellini, Giuseppe Verdi and Giacomo Puccini that puts bel canto phrasing alongside Verdi’s romantic heft and Puccini’s verismo ardor. Callas’s incisive, breath-driven attacks and Di Stefano’s lyrical tenor trade long-breathed legato lines and sudden dramatic swells, captured in the warm orchestral sheen of mid-century Angel Records production.