Baird Hersey is a musician and National Endowment of the Arts Composition Fellow.  A student of yoga and overtone singing since 1988, he studied ashtanga yoga with Sri Pattabhi Jois for 9 years.   In this book he writes about the ancient practice of nada yoga -- a journey from the noise of the external world to a place of inner peace.  He explains the first three levels of sound: how to truly ear ordinary sounds, now to quiet the mind, and ow to access visual sounds.

In 2000 he formed the 9-voice overtone choir Prana.