Have you ever heard of polyphonic overtone singing? It's a voice technique where it sounds like one person is singing two notes at the same time. It's pretty amazing.

This woman can make the sound of two notes at once. She makes it seem so easy, you'd think it'd be something she learned as a party trick. But the singer, Anna-Maria Hefele, has been doing this ...

German singer Anne-Maria Hefele has been training her voice since 2005 to become an polyphonic overtone singer. This means that she is capable of singing different scales of low notes (fundamentals) ...

Normally, when singing, you can adjust the pitch of the tone that you create based on the positioning of your tongue in your mouth, which is a form of air chambering that increases or decreases the ...

Famous male entertainer attacked by a female in an elevator… sounds familiar, right? Real-life celebrity subplots on Law & Order. Polyphonic overtone singing makes a singer sound as if she s singing ...