This book explains in detail the bases of the yoga of sound, its therapeutic aspects and its effect on the biological and psychic system of the human being. From the thousand-year old Indian tradition a scientific method to regulate your own emotional and physical state through the vibrational resonance of singing. The first traces of Nada Yoga appear in the most antique and sacred Indian scriptures such as the Natya Shastra , the Gandharva Veda , the Naradiya Shiksha , and many others. Thanks to the extraordinary work of the musician and researcher Vemu Mukunda it was recovered from the ancient traditions and diffused throughout the world. The author, Stefano Manfrin, relying on years of in-class experience, as he was committed to spreading the science of Nada Yoga, in this text revisits and further deepens this discipline. He has developed and coined his original contribution: the System of Music-evolution .