Wikipedia
Kubing
The kubing is a type of Philippine jaw harp from bamboo found among the Maguindanaon and other Muslim and non-Muslim tribes in the Philippines and Indonesia. It is also called kobing ( Maranao), kolibau ( Tingguian), aru-ding ( Tagbanwa), aroding ( Palawan), kulaing ( Yakan), karombi ( Toraja), yori ( Kailinese) or Kulibaw. Ones made of sugar palm-leaf are called karinta ( Munanese), ore-ore mbondu or ore Ngkale ( Butonese).
The kubing is traditionally considered an intimate instrument, usually used as communication between family or a loved one in close quarters. Both genders can use the instrument, the females more infrequently than males who use it for short distance courtship.