??, ???, ???, ??, ??, ????, ????? ?? ?? ?? ? ??? ????. Sing-alongs (present because the start of singing) fundamentally changed While using the introduction of latest know-how. while in the late 1960s and in the 1970s, saved audible resources began to dominate the new music recording industry and revolutionized the portability and ease of use of b

??? ???? ?? ??? ???? ??? ?????. ??? ?????? ???? ?? ? ??? ?? ??? ??. ???? ???? ??? ??? ??? ???? ????? ??? ?????. ??? ??? ?? ??? ?? ??? ????? ????? ?????? ?????. ??? ??? ??? ??? ?? ? ??? ???? ?? ??? ??? ??????. ??? ??? ?? ??? ?? ??? ????? ????? ?????? ?????. ??? ??? ??? ??? ?? ? ??? ???? ?? ??? ??? ??????. ?? ????? ???? ???? ?? ??.. ?? ???? ??? ?