Angklung is a rattle like musical instrument made out of two or more bamboo tubes attached to a bamboo frame. The tubes are carved so that they have a resonant pitch when struck. The tubes are tuned to octaves or making chord. The base of the frame is held with one hand while the other hand shakes the instrument rapidly from side to side. This causes a rapidly repeating note to sound.(tremolo) Thus each of three or more angklung performers in an ensemble will play just one note and together complete melodies are produced,or played by single player on the rack. Angklung is popular throughout Southeast Asia, but originated from Indonesia (used and played by the Sundanese since the ancient times).It is heard it both folkloric and modern songs. It is is a familiar and beautiful sound in Indonesia. According to folklore, angklung was a musical instrument of agricultural festivals and was also used during the festivities to arouse the fighting spirits of soldiers. It was also associated in Java with kuda lumping dancing tuned to the traditional pentatonic scale . We produce two tubes angklung and three tubes angklung using black bamboo(bambu hitam/ Gigantochloa aff. atter ) tuned to the International Chromatic scale(diatonic scale) which differs from the traditional pentatonic scale.

(Verbatim text from www.kolintang.co.id)