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brownout a blown up balloon -about 40cm diameter- is pulled over the tip of a prepared syringe. five to eight drops of water are inserted into the spaces of the male part. then the sound can be tuned by pulling the male part out. very slowly air escapes through the syringe and produces sound at the exit point. due to small irregularities in the material and preparation each object differs in sound and duration - between 10 minutes and 8 hours approximately.
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