However, the Hichiriki flute requires a close distance between the holes, the material is blighted, old, and dried, and it is bamboo that has been smoked in the ceiling above a fireplace (a sunken hearth) in a farmhouse in daily life for three hundred to three hundred fifty years, so it is very hard and fragile.
一方、篳篥は穴の間隔が近く、使う素材は枯れて古く乾燥し、農家の囲炉裏の天井で300年～350年、日々の生活の中で燻（いぶ）されたスス竹であるため非常に堅く割れやすい。