The cover design and outward appearance of this book are excellent and I suspect the set would look great on a shelf.
Unfortunately this book requires so much in-depth prior understanding of music theory that I suspect only professional musicians with and excellent grasp of music theory will actually understand it.
Here's a taster from the chapter entitled "Meet the Intervals"
"Intervals can be thought of in two ways: The first is as an ever-contracting series of simple frequency ratios, so that the first interval (the octave) is a 2:1 relationship, the second (the fifth) is 3:2, and the third (the fourth) is 4:3. The follow the major third of 5:4, the minor third of 6:5, the second of 9:8 or 10:9, and yet smaller intervals, with names like the quarter tone, shruti, li, comma, apotome, and microtone, depending upon the ere and culture.
I was always taught that if you don't understand what's being taught then it's not being taught very well. It's such a shame that, although I believe there might some valuable insights in this little book, what's of value is buried in an inaccessible code only decipherable by music-math savants.
I might just be being thick of course.