? ?????? ???????????, ??????? ????? ???????? ?? ???????? ?????????, ??????? ????? ???????? ????? ??? ?????? ????????, ?????? ????? ???? ?? ????????.Emphasising the necessity of Yamaha’s DX7, composer and MusicRadar journalist OSC Steve argued: “it’s probable to categorise 1980s songs into two eras; the pre-DX7 era as well as the publish-DX7 e