Quadrivium: The Four Classical Liberal Arts of Number, Geometry, Music, & Cosmology
Bloomsbury USA, Nov 1, 2010 - Music - 416 pages
The quadrivium-the classical curriculum-comprises the four liberal arts of number, geometry, music, and cosmology. It was studied from antiquity to the Renaissance as a way of glimpsing the nature of reality. Geometry is number in space; music is number in time; and cosmology expresses number in space and time. Number, music, and geometry are metaphysical truths: life across the universe investigates them; they foreshadow the physical sciences.
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I got a copy of this book on my odd quest to recreate the octonions my own way. Never made it but man this definitely opens the doors of such. Totally love it.
I found this book fascinating. Particularly enjoyed the sections on music.