THE LOST GEOMETRY OF MUSIC

"The connection between music and mathematics has fascinated scholars for centuries.  More than 2000 years ago, Pythagoras reportedly discovered that pleasing musical intervals could be described using simple ratios.

"And the so-called musica universalis or 'music of the spheres' emerged in the Middle Ages as the philosophical idea that the proportions in the movements of the celestial bodies -- the sun, moon and planets -- could be viewed as a form of music, inaudible but perfectly harmonious.

"Now three music professors ... have devised a new way of analyzing and categorizing music that takes advantage of the deep, complex mathematics they see enmeshed in its fabric."

~  from the article Researchers Uncover the Lost Geometry of Music.