This reminds me of one of the best music lessons I ever received. It was from one of the guitarists of a moderately well-known band from the CBGB's era of Ameri

This reminds me of one of the best music lessons I ever received. It was from one of the guitarists of a moderately well-known band from the CBGB's era of American music. He linked the Circle of Fifths (a basic musical concept of western harmony) to both its underlying mathematics and the more esoteric side of Christian theology. Consonance and dissonance became our relationship between Heaven and Hell. Intervallic relationships could be measured both mathematically and theologically, and both tied directly to our intellectual and emotional response to the music. It's a short and obvious step from the mathematics of harmony to the structure of Kabbalah, and from Kabbalah to theology.