 one with only the ability to realize dynamic changes in a terraced manner, referring to the "Neo-Baroque" organs of the Orgelbewegung movement).He made this statement in the preface (1938) to his final Reger edition of "Ein feste Burg ist unser Gott", op.27 (not because he advocated this aesthetic change, but rather for the sake of his good friend and colleague's musical contributions).