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In page Nina Koshetz:
"Having received voice lessons in France from the retired dramatic soprano Felia Litvinne, she sang leading roles in opera and performed in principal opera houses across Russia and Europe. In the late 1910s she performed at the Petrograd Conservatory and was accompanied by then-unknown Vladimir Horowitz. She had initially resisted being accompanied by the unknown student, but afterward insisted only he could accompany her there; she subsequently programmed some of Horowitz's songs.[citation needed]
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