I enjoy listening to the Goldberg Variations, and I had looked forward to reading this book. What a disappointment!
Several questions about the work are asked in the text, but no answers given. If one of the leading Bach scholars of our time does not know the answer, what is the point of asking the question?
The book is full of numerology. It is suggested that Bach wrote fourteen extra canons inside the back cover because B+A+C+H = 2+1+3+8=14 ! There is no evidence given that Bach ever wasted his time with numerology. Referring to the ten canons in the Musical Offering we have the conjecture;- "Ten for the Commandments (decem canones)- if not why not? If so, why?" One can make any ridiculous suggestion, and then say "if not,why not? If so,why?"
The author goes on to list the "multiples and powers of two" that can be found in the Variations. e.g.
"2 halves to the whole work" (Is a work in one half possible?)
"2 keys (major, minor)"
etc., etc..
For some reason he omits the fact that Bach had two hands, two feet, and two eyes.
The final chapter discusses how other authors have written about the Goldberg Variations. Referring to one author's work, Peter Williams says "Unfortunately for its author, this essay's whole approach is modelled on a previous and similar reading ... that was never more than conjectural, unilluminating, and irrelevant."
Unfortunately for Peter Williams, conjectural, unilluminating and irrelevant are apt descriptions of this book.
Don't waste your money on this book. If you enjoy listening to the Goldberg Variations, I strongly recommend the arrangement performed by the Canadian Brass Quintet [BMG Classics 09026-63610-2]