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OVERTONE SINGER AND THERAPIST






OVERTONE SINGING

OVERTONE SINGING is a technique that allows the production of two tones at the same time: a low-pitched fundamental tone and a high-pitched partial or harmonic.

This technique allows the selection of one tone from a sound and the amplification of it. This phenomenon is shown in the following picture produced from a spectrogram (see www.visualizationsoftware.com):



Each natural sound is composed of several tones of different frequencies, starting from a low-pitched one and rising up to very high-pitched tones. These harmonics build the natural scale of tones, which describe an infinite mathematical series. The frequencies in this series are calculated by multiplying the frequency of the basic tone with whole numbers (1, 2, 3, 4, …).

Musicians work with the first 16 partials only, as they represent the tones of our musical system. In therapy, all frequencies are used.

An example based on C is shown in the following table:


Harmonic

Note

Interval

Solfège

Frequency

16th

C

Octave

Do

2048 Hz

15th

B

Major seventh

Si

1920 Hz

14th

Bb*

Minor seventh*

Sib*

1792 Hz

13th

A*

Sixth*

La*

1664 Hz

12th

G

Perfect fifth

Sol

1536 Hz

11th

F#*

Augmented fourth *

Fa#*

1408 Hz

10th

E

Major third

Mi

1280 Hz

9th

D

Major second

Re

1152 Hz

8th

C

Octave

Do

1024 Hz

7th

Bb*

Minor seventh *

Sib*

896 Hz

6th

G

Perfect fifth

Sol

768 Hz

5th

E

Major third

Mi

640 Hz

4th

C

Octave

Do

512 Hz

3rd

G

Perfect fifth

Sol

384 Hz

2nd

C

Octave

Do

256 Hz

1st

C

Unison

Do

128 Hz

 

* These frequencies are slightly inferior to those of the even tempered scale, which was created by dividing an octave into 12 equal parts.



Overtone singing exists in several different styles, the most well known of which are:

- Khöömei
- Sygyt
- Karguira

"Sygyt" is the richest and most harmonic of these styles. Sygyt means "to whistle" and uses continuing tension of the jaw and larynx muscles, the tongue, the diaphragm and the abdominal belt. Practicing this style is equal to a kind of sound or voice yoga.

We are not going into further detail here, as there is enough literature explaining this subject:


Healing Sounds Overtone Singing
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www.healingsounds.com
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www.fusica.nl