Willow flute
The willow flute, also known as sallow flute (Norwegian: seljefløyte, Swedish: sälgflöjt or sälgpipa, Finnish: pitkähuilu or a general term pajupilli, Latvian: kārkla stabule, Lithuanian: švilpynė), is a Nordic folk flute, or whistle, consisting of a simple tube with a transverse fipple mouthpiece and no finger holes. The mouthpiece is typically constructed by inserting a grooved plug into one end of the tube, and cutting an edged opening in the tube a short distance away from the plug.