Hellow guys, Welcome to my website, and you are watching 고음연습공개, 훈련용 스케일 연습, 하루 10분씩 3번. and this vIdeo is uploaded by 지이소리(JIYISORI) at 2020-10-23T02:26:49-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.