Hellow guys, Welcome to my website, and you are watching 두성,고음,Headvoice발성 - 이윤석 원장님 ' 3옥타브 ' 발성법. and this vIdeo is uploaded by 바디사운드 - 발성전문 at 2016-02-06T00:32:31-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
