Tuvan throat singing, Khoomei, Hooliin Chor (in Mongolian, 'throat harmony'), or Mongolian throat singing is one particular variant of overtone singing practiced. Oct 5, 2014. When you watch German musician Anna-Maria Hefele demonstrate a few polyphonic overtone singing techniques, you will get chills. Laos Folk Music Dvds The Music Center in Los Angeles. Below is a collection of videos of Mitchell performing in front of audiences in the 1960s. Linken…