Book excerpt: The 17th century was the century of the organ in much the same way the 19th century was the century of the piano. Almost without exception, the major composers of the century wrote for the instrument, and most of them were practicing organists themselves. This historical book surveys, analyzes, and discusses the major national styles of 17th century European organ music. Due to the extraordinarily extensive body of literature produced during this 100-year period, this text includes 350 musical examples to illustrate the various styles. The book also includes brief discussions of the various national styles of organ building, an appendix about the various notational methods used in the 17th century, and a chapter on Spain and Portugal written by Andre Lash, an expert on the subject.