00628naa#a2200169#i#450# EN\\bibl\21131 20260315010210.7 2541-822X 20181227b2018####ek#y0engy0150####ca RUS RU INTEGRATION OF THE POTENTIALITIES PRESENTED IN MUSIC LESSON OF A GENERAL EDUCATION SCHOOL INTO CHORAL CLASSES WITH ADULTS Journal article Cheboksary Non-state educational private institution of additional professional education "Expert-methodological centre" 2018 7 с. Journal article local Novoselov Vyacheslav Al. zh-szf.ru