Gao, Y. 2022. "Children’s Songs" by P. I. TCHAIKOVSKY AND ANALYSIS OF THEIR FEATURES IN THE CONTEXT OF LIFE OF A RUSSIAN NOBLE ESTATE. Sworld-Us Conference proceedings. 1, usc09-01 (Jan. 2022), 123–129. DOI:https://doi.org/10.30888/2709-2267.2022-09-01-030.