Although none of the cast members—aside from Cesare Siepi—could be considered major stars, this performance of Don Carlo proves that great opera is often the result of ensemble cohesion rather than marquee names. Each soloist contributes thoughtful phrasing and admirable vocal discipline, and under the expert direction of Carlo Maria Giulini, the whole production comes together with remarkable clarity. Presented in the five-act version (though the Fontainebleau scene is heavily cut), the performance hits its dramatic peak in the chilling confrontation between Siepi and Martti Talvela during the Grand Inquisitor scene.