A lucid and engaging explanation of how the physics of sound production influence music theory. I attended music conservatory and still gained a much better understanding of how music works from reading this book-in fact I really wish I'd had it for an intro to my freshman studies! Powell is very gifted at explaining tricky concepts in a concrete way. After each of his explanations I felt I truly understood what he'd expressed, and his gentle sense of humor made for a fun as well as educational read.