The Pythagoreans believed that music was a purification for the soul, just as medicine was a purification for the body. The ancient Greek philosopher and polymath, Pythagoras (c. 570 – 495 BC) said that all things in cosmos – κόσμος are made of numbers ensuring that the universe functions in order and harmony. Known with his pioneering theories on music and mathematics, he proclaimed that cosmos is in harmonious motion precisely timed and structured.   The harmonious and repetitive rotations of the spheres emit celestial melodies which he phrased  as musica universalis –  the music of the spheres. He put forth …