Origin from the South East Asian, tangkongan is a type of zither,
made from bamboo, used by the Murut and Kadazan communities in Sabah.
It is made of either 4 or 8 strings. These strings are drawn off from
the bamboo tube itself, without cutting it. The strings are then tightened
with the help of a trestle from a piece of small wood, which serves
as a bridge. One long hole is made as the echo hole, on the surface
of the zither. The strings are plucked using the thumb, to produce
a rhythmic melody.