Education
Moscow Conservatory; Moscow State University.
Moscow Conservatory; Moscow State University.
Born in Kiev when it was part of the Russian Empire, Cores earned a Doctor of Natural Science degree from Kiev University and a doctorate from the University of Moscow. He worked as a lawyer before moving to the United States in 1923. Cores studied music at the Moscow Imperial Conservatory under January Hřímalý.
He played in the New York Philharmonic under Willem Mengelberg, the National Broadcasting Company Symphony Orchestra under Arturo Toscanini, and the Stringwood Ensemble, a chamber music ensemble.