The whole thing about music being mathematical and rational is something that I really get excited about. I learned how to do fractions because I played the piano when I was a kid, and any music theory student will be the first to tell you that there’s a lot of hidden math in music. I had never thought about how music is written into the universe. Why do we have the notes we do? What is the logic behind music? To make a chord, you need three notes (one is a root note), and a note a third away, and a fifth away – which is a MAJOR chord, which is comforting to listen to compared to a minor chord. 

I think it is very interesting how minor chords sound sinister and dangerous compared to major chords to westerners. I don’t really know why they do but even I feel kind of uncomfortable listening to them, even though the notes should be harmonious together. I wonder if there is any evolutionary reason behind this.