Many natural objects can be made into a flute-like instrument. I guess this was part of the start of music:

beating on a hollow log,
wind chimes by blowing over a hollow tube/bottle-like object,
blowing a blade of grass between thumbs,
plucking a string with tension,

mimicking the sounds of the nature

This short demonstration shows creativity in a smile-inducing fashion with an aha-effect. Thank you for posting that talk that is not on the TED web site.


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