The dangjeok is an aerophone which gives off a clear and bright sound, and has a limited one and a half octave range according to the ancient Korean music treatise, the akhakgwebeom. It is often played accompanied by the Korean lute and xylophone. Remodeled to enhance range, it is made of yellow bamboo or sick bamboo, and possesses a single end-blowing notch, and seven holes to control pitch, though the seventh hole is not used.
The dangjeok is an ancient Korean aerophone that produces a clear sound within a limited range of one and a half octaves as stated in the akhakgwebeom. It is typically accompanied by the Korean lute and xylophone. Remodelled to increase its scope, it is made from yellow or sick bamboo and features a single notch for blowing air and seven holes for pitch control, although the seventh hole is not employed.