- Andrew C. McGraw
Idioglot aerophone of southern Nias, Indonesia. In the north it is called sigu m’bawa. It is made from a segment of bamboo 20 to 30 cm long, closed at the top by a node. The top 4 cm is filed narrower and thinner than the rest of the tube. A single reed, about 2.5 cm long, is cut upwards into the side of the top section, eventually opening into the air column; the free end beats against the outer wall of the tube. When blown, the entire top section is placed into the mouth of the player, who uses circular breathing. When fingerholes are included there are usually three, and the side of the tube is shaved to create a flat surface where the holes are drilled....