*** NOTE: The 4th Edition has now been superceded by the 5th Edition (ISBN-13 979-8862786439) *** This book is a concise guide to the harmony of Bach's chorales for advanced level music students, equipping them with the knowledge and understanding to complete their own chorale harmonisations with confidence and accuracy. Bach's practice in harmonising chorales is explored throughout the book, from the basics of four-part writing to the complexities of chromatic harmony.