This volume brings together essays on J. S. Bach and members of his family by a distinguished group of scholars. The essays address Bach's compositions, his knowledge of the musical past, his study of contemporaries, and the cultivation of his own music by later generations. The studies draw on source criticism, musical analysis, religious and social context, performance practice, and reception history - a broad range of techniques and issues in modern Bach scholarship. The international contributors include both established scholars and newer voices in Bach studies. This volume will be indispensable for any future work on the Musical Offering, St Matthew Passion, Italian Concerto, on Bach's musical connections with his sons Carl Philipp Emanuel and Wilhelm Friedemann, and on many other topics in Bach research.