Photo: © OMC-Marco Borrelli On Sunday April 7th, 2024, the Opéra de Monte-Carlo concluded their 2023-2024 season with the world premiere of “Their Master’s Voice,” starring mezzo-soprano Cecilia Bartoli and actor John Malkovich. The show was a coproduction with the annual music festival Le Printemps des Arts de Monte-Carlo, of which this performance was also the closing event. For voice {…}