打开App
360P
入门级伴奏，加上这个轻重缓急，真是好
入门级电子琴必看319/332
App01:57
App01:21
App03:20
App02:22
App03:37
App01:49
App04:54
App01:42
App04:27
App01:51
App02:54
App01:42
App02:02
App03:22
App02:45打开App观看
App01:57App01:21App03:20App02:22App03:37App01:49App04:54App01:42App04:27App01:51App02:54App01:42App02:02App03:22App02:45
