According to Blench a name used in northeastern Borneo [i.e. Sarawak; ws]; ➺ Sompoton, Sumpotan.
Sources
Blench, Roger: The history and distribution of the free-reed mouth-organ in SE Asia (presented at the 14th EurASEAA meeting, Dublin, September 2012 (Draft submitted for proceedings, 2012), p.7.