"Key to Key" is a practical book written by a professional arranger. It is an aid to help you get from one key to another. There are 132 modulations taking you from any key to any other key. You will also find some useful discussion on how these modulations work. Although modulations to minor keys are not included, there are some hints that will help you accomplish that task as well. Some other creative ideas have also been included. This book is not a music theory treatise but, simply, an every-day, practical book to help you easily make the journey from "Key to Key".