?? ?? ???? ?????? ???? ??? ? ??????? ?? ???? ???? ????? ????? ? ???? ???. ?????? ?? ????????? ????? ????? ????? ? ??? ??? ?? ???? ??????? ?????? ? ???? ????? ?????? ????? ???????. ?? ???? ??????? ?????? ???????? ??? ?? ???? ????. nearly every modern-day piano has 52 white keys and 36 black keys for a total of 88 keys (7 octaves in addition a insi