00611naa#a2200169#i#450# EN\\bibl\26404 20260818080611.2 2541-822X 20190521b2019####ek#y0engy0150####ca RUS RU HOW TO GET THE CHILDREN'S ATTENTION AT GROUP ENSEMBLE SINGING LESSONS (CHILDREN’S AGE IS FROM 5 TO 7 YEARS) Journal article Cheboksary Non-state educational private institution of additional professional education "Expert-methodological centre" 2019 4 с. Journal article local Akulova Natalya V. naukaru.ru