"This was Maria Callas' final season in Mexico City at the Teatro Bellas Artes. She was revered in Mexico and was bestowed the honor of 'prima donna assoluta' displayed on the marquis of the theatre. Her voice was basically thick during this juncture. It took effort to lighten the tone for leggiero roles. The basic tone is not that sweet as a true coloratura, i.e.: Lina Pagliughi or Toti Dal Monte, but she copes well with the pyrotechnics. Her rendition of 'vieni al tempio' at the end of Act One elicits a thunderous ovation, mainly for the immense three high C's and high D. These notes on her commercial recording from March, 1953 are not as imposing. The 'vien diletto' in Act Two is not as successful as her rendition of the Cetra recording from 1949 or the complete recording from 1953. The glissandi's are not smooth and the high E flat is released quickly. However uneven the performance, her singing in the final act is superb. Giusepe Di Stefano sounds more comfortable in this performance than in the 1953 commercial recording. He manages the high notes with more ease. Piero Campolonghi and Roberto De SIlva are not memorable. Guido Picco's conducting is all right but does not have the refinement of Tullio Serafin's in the commercial recording. The transfer on this IDIS version is superior to former CD releases."