http://www.iranian.com/main/blog/khar/pure-life-beautiful-people
I’m posting the above clip not only because it shows guys playing double reed pipes through circular breathing, but because there is some good footage of the nomads using a goat hide as a water bag to make yogurt from the goat milk. As you can see the goat hide is constructed in the same manner that many bagpipe bags are made in the areas of Italy, Eastern Europe, North Africa and West and South Asia. It’s probably safe to assume that these goat bags were used for holding liquids before they were placed on pipes. Interestingly the reed pipers in the video are using circular breathing as opposed as to using an old yogurt bag for their air supply 