Baritone Leonard Warren of the Metropolitan Opera company will open the 1950-1951 Concert course at 8:15 p.m., Oct. 12
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Completing the concert course will be Violinist Ossy Renardy, Soprano Nadine Conner, and Pianist Jean Casadesus. Baritone Warren has starred in 22 Metropolitan operas in New York besides appearing in major opera roles in other cities.