%A ?. ?. ?????? %J XVI International Scientific and Practical Conference Social and Economic Aspects of Education in Modern Society %T Harmonic-bayan instrumentation of Gorlivka factory of musical instruments %X ? ?????? ????????? ????????? ? ??????? ??????????? ??????? ???????? ??????????? %N 1 %K musical instrument factory, bayan, harmonica, structures, range, keyboard %P 35-38 %D 2019 %I Warsaw %L zu234561