Type: Chordophones > Zithers > Tube.
Hornbostel-Sachs No#: 312.11
Country: Batak Karo area, North Sumatra, Indonesia.
Region: South East Asia.
Description: The Keteng-Keteng is a tube zither that is found in the Batak Karo area in North Sumatra, Indonesia. It is between 60 cm and 80 cm in length and usually about 10 cm to 15 cm in diameter. When the lower strings are beaten, they produce a sound resembling a gong.
Playing Techniques: The part played on this string, resembles the punctuating part of a gong in the main Batak Karo ceremonial orchestra, the Gendong Sarunai. It is played four, eight or 16 beat intervals. The other string, producing two pitches, contributes, to the stock melodic patterns. Rhythmically the music performed on this instrument, resembles the drumming in main ceremonial orchestra.
Construction: The tube is at each end retaining both nodes. A whole is cut into one node at the front and back of the tube. Two or occasionally three strings are cut from the same piece of bamboo. Bridges are inserted at both ends underneath each string.
The highest of the strings is raised by inserting a bridge in the middle. The insertion of the middle fret when raising the string, allows for two separate tones to be produced.
Citations: Bibliography: Margaret J. Kartomi, Stanley Sadie ~ New Grove Dictionary of Music, Vol. 2 Book Go to O page 379 ;