Today’s tidbit – overtone singing!
Overtone singing is a fascinating art which can be achieved by manipulating certain resonant cavities so you can sing two notes at the same time. Here’s a slightly technical explanation, courtesy of Wikipedia: “Overtone singing is a type of singing in which the singer manipulates the resonances created as air travels from the lungs, past the vocal folds, and out of the lips to produce a melody. The harmonics of a sound wave made by the human voice can be selectively amplified by changing the shape of the resonant cavities of the mouth, larynx and pharynx. This resonant tuning allows singers to create apparently more than one pitch at the same time, while actually generating only a single fundamental frequency with their vocal folds.”
So in essence, only one vibration is the source of the two notes. By changing the “resonant cavities” of the mouth, a person can form two notes out of one vibration. But it’s hard to understand this concept just by reading about it, so here’s a video demonstrating and explaining a little more about overtone singing.
~ Maggie and Cammi