Summary: What is music? How and why does it affect us? What is the nature of musical genius? Author/composer Robert Jourdain explores these and other questions, from the essential nature of sound through composition, performance, and, finally, the nature of ecstasy. His prose is eminently readable, offering a very accessible account of a difficult subject to the general reader as well as to the musical sophisticate. This is a fascinating and intriguing book, written by someone who clearly knows his subject.