Type: Membranophones > Cylindrical > Drum > Single.
Hornbostel-Sachs No#: 211
Country: Mentwawei Islands, Indonesia.
Region: South East Asia.
Description: The Kateobak [Kajeomak] The name kateobak is used to describe an ensemble three, sometimes four drums and sinna [concussion bars]. In south Siberut Island the large kateobak is called inania [the mother] and the others katalaga [the middle one] and kateitei [the back one]. The kateitei usually plays syncopated rhythms, while the inane plays the downbeats and the katalaga plays the upbeats.
Construction: The body is made from a hollowed out piece of coconut tree-trunk, varying between 75 cm to 100 cm in length. It is about 14 cm to 18 cm in diameter at one end tapering to about 10 cm to 14 cm at the other. The larger end is covered with snake skin. The membrane is usually of snake skin is laced onto the drum body rattan string. The rattan is sewn around the circumference of the drum at the front end.
Citations: Bibliography: Margaret J. Kartomi, Stanley Sadie ~ New Grove Dictionary of Music Book G to O, Page 364 ; Websites ;