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Continue to Chat[색소폰학교] 롱톤할때 소리가 떨리는 이유는?(색소폰레슨,색소폰독학,색소폰강의,색소폰배우기,색소폰기초,색소폰동영상강의) セ https://blog.gongquiz.com/2021/10/04/%ec%83%89%ec%86%8c%ed%8f%b0%ed%95%99%ea%b5%90-%eb%a1%b1%ed%86%a4%ed%95%a0%eb%95%8c-%ec%86%8c%eb%a6%ac%ea%b0%80-%eb%96%a8%eb%a6%ac%eb%8a%94-%ec%9d%b4%ec%9c%a0%eb%8a%94%ec%83%89%ec%86%8c%ed%8f%b0-2/