Genggong
The genggong is a kind of jew's harp used in the music of Bali. It consists of a wooden frame and tongue cut from a single piece of the leaf stem of the sugar palm. The left end is held firmly against the cheek, while a string tied to the right end is jerked rhythmically to set the tongue into motion. Different harmonics are produced by pronouncing different vowel sounds.
Very much a folk instrument, genggong was traditionally played only as a solo instrument or with small numbers of other genggong as informal entertainment. Since the 1930s, however, genggong has often featured in gamelan genggong, a larger ensemble of several genggong together with suling and percussion instruments.
