This present volume is an updated edition of Volume 4, Series IV, of the New Bach Edition, presented by Manfred Tessmer in 1969. A fully revised edition proved unnecessary, as there were relatively few corrections affecting the musical text. However, the volume now includes a detailed Preface by Christoph Wolff which discusses not only the work’s genesis but also offers an up-to-date description of the sources. For the new engraving of the musical text page-turns were reviewed and improved.
Bach’s autograph is considered lost and so the main source is the original print of the collection from 1739.