How it began
The angklung originated among the Sundanese in what are now West Java and Banten provinces, where it has been played for many centuries; no founding date is recorded. It was played at ceremonies such as rice planting and harvest. In 1938 Daeng Soetigna of Bandung built an angklung tuned to the diatonic scale instead of the traditional pelog or slendro scales. That version is called angklung padaeng after him.
How it works
Two to four bamboo tubes hang in a bamboo frame bound with rattan cords. A craftsperson whittles and cuts each tube so that it gives a set note when the frame is shaken or tapped, with the tubes tuned in octaves. One hand holds the base and the other shakes the frame. Each instrument gives one pitch, so each player in an ensemble sounds a single note at the right moment and the group produces the melody together.
How it spread
After 1938 the diatonic angklung could be played with Western instruments. One of the first orchestral performances took place in 1955 during the Bandung Conference. In 1966 Udjo Ngalagena, a student of Daeng Soetigna, opened Saung Angklung in Bandung as a center for preservation and teaching. A Smithsonian essay describes how the center reached audiences abroad with interactive performances in which hundreds or thousands of people play together.
What lasted
Because every player holds one note, an angklung orchestra depends on cooperation, and UNESCO and other sources link the instrument to teamwork and mutual respect. Daeng Soetigna's tuning made it usable in music education, and later makers produced further variants such as arumba and angklung toel.
Where it stands today
UNESCO inscribed the Indonesian Angklung on the Representative List of the Intangible Cultural Heritage of Humanity in 2010. Makers still harvest a special black bamboo during the two weeks of the year when the cicadas sing, cutting it at least three segments above the ground so the root keeps growing.