At the center of the edition are Reincken's two lengthy chorale fantasies, as was to be expected. The volume also contains chorale-free pieces: next to the well-known Toccata in G major and the Fugue in G minor, there are three further toccatas for which stylistic and source-critical arguments make a case for Reincken's authorship. The extensive preface details the most recent scholarly findings on Reincken's biography and works, as well as on important questions of interpretation.