When we were living closer to the natural world, we discovered links between the ways in which sounds were formed - what I call "biophonies". We then used this structure to learn to orchestrate and vocalise. That's how we got our music. It goes back to when humans first emerged from the forests and plains of Africa...-- Bernie Krause
There are a couple of groups, like the Jivaro in South America and the BiAka tribe of pygmies in the Central African Republic. Because they live as part of the natural world, they still do this collective music. They use the natural world as a karaoke orchestra. There's nothing primitive about it - it is far more advanced than anything we are doing.