While an interesting read, I found Jourdain's book frequently annoyed for the same reasons that, in retrospect, I now realize my junior high music snob phase annoyed. For a few years there, I listened to nothing but Western classical music of about 1500 to 1900. I reveled in my superior taste. Thank goodness I got that out of my system at an early age. Mr. Jourdain seems never to have outgrown it. His constricted musical tastes made him to lose credibility with me when he moved from areas with which he clearly resonates (harmony and mainstream Western classical music) to those that do comparatively little for him (rhythm, non-Western music, modern music, jazz, rock, the list goes on and on). The book is most interesting for what it reveals about the author, not for what it tells us about music.