Jocelyn, Have you ever heard of Polyphonic overtone singing??
*Kind of always known that something like this was possible, and interesting to hear it…*
.
http://boingboing.net/2014/10/06/polyphonic-overtone-singing.html?utm_source=moreatbb&utm_medium=nextpost&utm_campaign=nextpostthumbnails
I believe that the technique was invented in Tibet.
Δ
Play It Again Swig 
Jocelyn, Have you ever heard of Polyphonic overtone singing??
*Kind of always known that something like this was possible, and interesting to hear it…*
.
http://boingboing.net/2014/10/06/polyphonic-overtone-singing.html?utm_source=moreatbb&utm_medium=nextpost&utm_campaign=nextpostthumbnails
I believe that the technique was invented in Tibet.