Opuk agoya (arched harp or bow harp).

https://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~20020~103065/full/,150/0/default.jpghttps://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~78706~182453/full/150,/0/default.jpghttps://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~75006~182455/full/150,/0/default.jpg