The angklung is a musical instrument from the Sundanese in Indonesia that is made of a varying number of bamboo tubes attached to a bamboo frame. The tubes are carved to produce a resonant pitch when struck and are tuned to octaves, similar to Western handbells. The base of the frame is held in one hand, while the other hand shakes the instrument, causing a repeating note to sound. Each performer in an angklung ensemble is typically responsible for just one pitch, sounding their individual angklung at the appropriate times to produce complete melodies.