00593naa#a2200169#i#450# EN\INFRA-M\bibl\132827 20260817160512.1 2500-3305 20260630b2026####ek#y0engy0150####ca RU The content and essence of the concept of musical-creative abilities of younger schoolchildren in teaching sand animation Journal article Moscow INFRA-M Academic Publishing LLC. 2026 9 с. Journal article local Начальное образование. 372.4 Levchenkov V. V. naukaru.ru