Mario Sereni
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性别：男
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Mario Sereni (March 25, 1928 – July 24, 2015)[1] was an Italian baritone, who sang leading roles at the New York Metropolitan Opera for many years.
Mario Sereni (March 25, 1928 – July 24, 2015)[1] was an Italian baritone, who sang leading roles at the New York Metropolitan Opera for many years.