I am stunned with the efforts those kids put into learning and exhibiting this famous song. The instruments are real treasure as well. I was a kid when first time saw Angklung at national TV, presenting some rare documentary of Indonesia. For a decades backward I tried to find some songs and even the name of the instrument - all I had in mind was the picture and music from the documentary. Thanks to the internet era and videos like this one, I went back to my youth days altogether with those magnificent kids.