A large number of works have survived bearing the name of Johann Sebastian Bach, the authenticity of which has been called into question on various occasions. This edition now combines all those pieces where Bach's authorship has been either verified by the musicologists at the "New Bach Edition" or where there is a degree of certainty about this. The edition gathers together a range of different types of composition: as well as numerous preludes and fugues, there are toccatas, dance and concert works. Two adaptations after the violin solo sonatas BWV 1003 and 1005 are worth special mention. These two works demonstrate particularly clearly what applies to all the other works in this volume: whether Bach's authorship is doubtful or not, there is no question that this is a collection of fascinating music.