Matti Lehtinen
Matti Kalervo Lehtinen (24 April 1922 – 16 August 2022) was a Finnish operatic baritone, a long-term member of the Finnish National Opera, and professor of singing at the Sibelius Academy. He appeared at the Savonlinna Opera Festival and international opera houses, and as an oratorio and lieder singer. Provided by Wikipedia-
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