For Kim Ju-ho, a student of Korean music at Seoul National University, language takes two forms -- one expressed through his vocal cords and the other through kkwaenggwari.'(Kkwaenggwari music) is another language for projecting myself,' Kim said, describing his relationship with the instrument.Kkwaenggwari is a traditional percussion instrument made of brass that is beaten with a wooden mallet. The instrument is known for its distinctive metallic clang that is used to set the rhythm in many genres of traditional Korean music.

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