It consists of at least two tubes of bamboo suspended in a frame and which emit a sound when we shake them laterally. Tubes are tuned on the octaves of the same note.
The Indonesian formations, mainly Java, include angklung of different sizes (between 0,50 and 1 meter in height) to play melodies. The size of every tube of bamboo determines the height of the sound. On the base of the instrument, a segmented resonator helps to throw the “crépitan” sound .