All great musicians have one thing in common---to a great extent they know what the harmony of a song is as they hear it. Do you? If not, here is a practical guide to get you up to speed. Written by Berklee professor Roberta Radley, it uses contemporary music to help you see how ear training is invaluable for your own musical needs. The audio portion of this book is available for free download at http://www.shermusic.com/new/downloads.​shtml.