Assertion: choir's tradition | /r/HasProperty | established by outstanding masters
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text: In choral conducting graduates of Soviet conservatories, including G. A. Dmitrievskii, K. B. Ptitsa, V. G. Sokolov, and A. A. Iurlov, have successfully carried on traditions established by outstanding masters who belonged to the prerevolutionary choral school, including A. D. Kastal’skii, P. G. Chesnokov, A. V. Nikol’skii, N. M. Danilin, A. V. Aleksandrov, and A. V. Sveshnikov.