Book excerpt: Orchestrating is a highly complex technique and to many, even those with academic training, a mystery fraught with a labyrinth of hazards. What is required, along with innate talent and general musicality, is the practical "know how." This is hard to achieve without actual professional experience and contact with "live" orchestras. To this end, John Cacavas contributes his extensive experience and ability with a practical approach to the practical problems of orchestrating. It is in this context most orchestrators must function, and to whom this book should be of benefit. The author has been a "musical activist" in all the varied aspects of instrumental combination from the "classical" to the "contemporary," and in the diverse application of his skills in all the media that utilize music and "orchestrations."