This performing Urtext edition contains “free” Organ pieces (i.e. not based on a chorale) and chorale partitas from various source traditions. Owing to doubts about their authenticity , they did not appear in the New Bach Edition until the end of 2003 (NBA IV/11). Today, however, scholars view Bach’s authorship of these pieces either as certain (e.g. the valuable Fantasy in C minor, BWV 1121) or at least worthy of serious consideration.
Bärenreiter therefore decided to issue them in this separate performance edition. This volume comes in addition to the nine volume edition of Bach’s Organ music (BA 5179).