I have zero music background so don't understand any of it, but in reading the comments on the first link a person posted this. Is it true?
>>The solution is simple. Make a one note musical instrument with the same basic design. Then cover the hole with your finger to get the same vibrations as the lung flute. Anyone can design and make one and the FDA would not be able to do a thing about it. -------Original Message------- http://www.popsci.com/bown/2009/innovator/pied-piper-mucus
