That looks like a nice survey, but it's very broad. You could probably find multiple books covering the topics in each chapter (similar story with Creative Evolutionary Systems, which is even broader, goes beyond music into all areas of "creativity"). Probably a great way to narrow down your interests?
If I'm unsure about an expensive book, it's usually not too hard to find a PDF with a bit of googling. I'll buy the printed book if it seems interesting enough (much easier to read dense subject matter with proper typesetting and the ability to quickly turn pages back and forth, in my opinion). That being said, my initial attempt at finding a PDF of Nierhaus's book came up empty.
More interesting stuff:
On the subject of intonation, early in my exploration of (for lack of a better term) non-traditional music I discovered Harry Partch, which sent me on an obsession with alternative systems of consonance for a while. Took me a long time to warm up to equal temperament as a result, but I finally have. A Geometry of Music is quite helpful in this regard as well. Equal temperament isn't a perfect system, but the benefits definitely seem to significantly outweigh the drawbacks.