Linked by a family tree which clarifies the genealogy of this complex family, each of the major figures is covered in a separate chapter with a review of the composer's life and works, complemented by a thorough work-list, bibliography, and index. The work-lists of J. S., C. P. E., and J. C. Bach have been considerably revised and updated in light of research conducted since the publication of The New Grove. In an introductory chapter Christoph Wolff provides a full list of family members, including biographical details, and discusses the family's history.