The names of Mauro Giuliani and Fernando Sor are usually uttered in one breath by most guitarists, and rightly so. The work of Brian Jeffery on Sor published originally in 1977 occupied in our culture a similar position to that of Heck’s dissertation on Giuliani. Without doubt, it was the best work available on the subject of Sor until that time. Several books on Sor did appear since 1977, but not one of them provided us with more accurate data on the life and work of the Catalan guitarist, as did Jeffery’s 1977 book. Unfortunately, I have to include Jeffery’s own second edition of his Sor book in the lot. Upon a detailed reading of Jeffery’s new book, and comparing it with the first edition, I am afraid I have not learned much I did not already...