I feel that deep culture and sensitivity are necessary to truly feel the joy and pleasure of singing.This will also affect the singing voice.If we focus only on technique, singing, which was intended to be a joy and pleasure of growth, will become a tool for competition and evaluation, whether we are doing well or not, whether we are better or not.This is not a fun thing to do.We believe that asking experts not only about their skills but also about their mentality and enjoyment will help us to enjoy life more.