This is what the inside of your head looks like when you sing
 

There's a lot more that goes into producing human vocalizations than just the dual flaps of your larynx and a gust of air. More than 100 muscles throughout your face and neck coordinate to create the wide range of complex sounds people make. And than...

http://www.engadget.com/2015/04/22/t...=rss_truncated