This video has been making the rounds recently. It’s a neat little example of a thing called “overtone singing,” which is also known as “throat singing.” When you first hear it, it may seem like it must be a talent that is only granted to a rare few, but it is actually a technique that nearly anyone can learn. As singer Anne-Maria Hefele states, “overtone singing is a voice technique where one person sings two notes at the same time.” This is accomplished by manipulating the placement of your tongue and the shape of your mouth. Such manipulation produces a low note and a high note.