The classical music of Indian Subcontinent has a rich history of thousands of years. But its exact origin can not be authentically traced. Historians of Indian classical music maintain that this music has evolved from the cultural practices of people of antiquity, who used to depend on hunting and, later, agriculture for subsistence and survival. Our ancestral original artist of music in those eras of the remote legendary past used to experience communion with nature and from their communing with various harmonic sounds of surrounding natural, such as the sweet twitting of birds, the rustle of leaves, the ripples of rivers and streams, they devised musical notes and compositions. Nature played the role of guide and structure for them. They extracted harmonics from the wealth of sound of nature.