This article is from the Tuva FAQ, by Kerry Yackoboski email@example.com with numerous contributions by Bernard Greenberg, Bernard Dubriel, Alan Shrives, Kevin Williams, Albert Kuvezin, Dr Oliver Corff, Mike Vande Bunt, Ralph Leighton, Masahiko Todoriki, Alan Leighton, Ken Simon, and Sami Jansson.
It's called ``khoomei'', or throat singing, and numerous CD's are
available. This is not unique to Tuva - singers come from Mongolia as well,
and the Tantric Gyuto Monks of Tibet (now living in India), also practice
this two-note singing in their chanting. They also have several recordings