==Singing Harmonics==
Singing any note produces harmonics. Within one note are many notes all related to the fundamental note through exact mathematical ratios. Most of the time we are unaware of the existence of harmonics. When we are in a room with good acoustics like a church or a bathroom, we are suddenly aware of a richer sound. The richer sound is produced by the harmonics that are accentuated by certain acoustic spaces. The ancient people used this knowledge when they constructed sacred sites like Stonehenge, Newgrange or the Kings Chamber in the Great Pyramid. All these buildings were sound chambers where sound healing took place.
*When we hear music rich in harmonics, like Gregorian Chant, Indian classical music or a cappella singing it induces an altered state of consciousness. It changes our brain patterns so that we feel more relaxed, more connected with the music.<span class="plainlinks">[http://www.youtube.com/watch?v=HwcG3mYo5Kk example : Gregorian Chant]</span>
*Ancient cultures understood the power of harmonics. Stringed instruments are particularly rich in harmonics. In the bible, David is said to have played the harp to heal King Sauls depression. Orpheus played the lyre, another stringed instrument in Ancient Greek mythology. In India, Saraswati, the Goddess of wisdom and music, is seen playing the Veena, a stringed instrument.
* Khöömii is an amazing style of overtone/harmonic singing where one person sings two or more distinct pitches at the same time. It originates among the nomads of the central Asian plateau, particularly the Altai and Sayan mountain regions of Mongolia and Tuva. The nomads of these parts have discovered how to sing melodies that arise from the universal overtone or harmonic series. Listen to your own overtones as you discover the unknown depths and heights of your own voice through these enchanting sounds. <span class="plainlinks">[http://www.youtube.com/watch?v=gQUgtEBbPi4 example : Khöömii]</span>