OK - I know them as whistle tones or harmonics. As a daughter of a flute player, I used to hear my Mom's students practicing overtones, or whistle tones by covering all of the key holes on the flute and blowing softly with their flute embrasure, until they produced what sounded like a high pitched whistle. By blowing a little harder, they could make the whistle produce a pattern of notes above the original whistle tone. The actual notes are specific, in other words, you won't hear a diatonic or chromatic scale. You hear the original note, then the octave above, then the fifth above that, then the fourth above that, then the third above that, and so on, as pictured in this graphic here.
You've probably seen stringed instrument players; violinists, guitarists, bass players, even harpists, tune with overtones. And there are plenty of pieces written for instrumentalists that use these sound effects, if I can call them that.
But, singing overtones?
I can't find the break in my voice halfway in the middle and I don't have an voice embrasure! The words are English, but singing overtones?? That is nuts. It doesn't even make sense.
Well, while attending a vocal seminar in Monterey last Fall, Directed by The Choral Project's Artisitic Director and Conductor, Daniel Hughes, I finally found out how to produce overtones while singing.
Here's a sample of me singing overtones into my iPhone video camera!
Pretty cool huh? Can you hear the overtone series? Play it again, a couple of times. If you listen carefully, you probably will start hearing them more and more! What a fantastic way to train your ear to hear more than the average listener!
So, how did I do it? This is the way Daniel Hughes taught us, in a nutshell. Here's the secret:
- Sing a D (right above middle C on your piano)
- While you are singing the D, sing the sounds "oh - oo - er - ee"
"Vowel sounds and lip shapes are important in fine-tuning the harmonics. The lowest harmonics are emphasized with tight "oo" sounds, while increasingly higher harmonics can be heard as vowels change through "oh...awe...ah...ay...ee," and everything in between."
You try it. It's a lot of fun. I intend to practice until I get really good.
Add some comments here on how you produce overtones while singing.