Huun Huur Tu - Chiraa-Khoor (http://www.youtube.com/watch?v=-bDntRWfL70#ws)<br/><br/>This is the Tuvan variation of throat singing. The clear whistling tone you can hear during some parts are actually done by the singer at the same time as he is creating a darker tone with his throat. Something I couldn't wrap my tongue around, but I managed them separately at least. It was pretty epic at the end of the evening when all fifty of us sang a short song in choir,