I think we often forget how music affects us and shapes our lives. A few bars of music can flood us with memories and change our state of being. Consider that people actually dedicate their entire lives to studying it. Like so many other ways of knowing; mathematics, physics, philosophy; the layers are endless... eventually leading to a mystery that goes beyond the logic of rational thought
Below are three videos that touch on the depth in music:
The first is a light and humorous demonstration of how four simple chords are used as the creative building blocks for numerous hit songs. In the second video, Bobby Mcferrin shows how music seems to be cross-culturally embedded into the human experience. In the last video, Tool takes a mathematical concept often used to describe nature and uses it in a song that is, essentially, about evolution: cool!
Axis Of Awesome - 4 Four Chord Song
Bobby Mcferrin: The Power of the Pentatonic Scale
The Fibonacci in Lateralus