This Is Your Brain on Music

I highly recommend the audiobook version of this book. While there is much to be gained by reading any book, hearing examples in the audiobook really adds to what a reader/listener can learn.

As someone who has studied a bit of music theory and plays the clarinet (in a mediocre fashion in a summer village band), I found this book to be a nice refresher.

Beyond music theory, there are a number of interesting psychological studies relating to how the brain processes music are referenced in the latter half of the book.