All Bruhns organ works edited from the sources. Nicolaus Bruhns's organ oeuvre still raises many questions today. Harald Vogel's performance edition based on the sources attempts to tap the full potential of information found in the sources and to follow the original notation as closely as possible. Vogel eschews personal additions through analogical constructions, preferring instead to keep the user close to the original. This reprises the practice of his editions of Scheidt's "Tabulatura nova" (EB 8565-67) and of Sweelinck's works (EB 8741-44). In the preface, a detailed commentary offers a discussion of the authorship of two dubious works that were included in the Appendix. There are also two lengthy essays focusing on the most important aspects of notation, interpretation and original instruments.