"Urtext der Neuen Bach-Ausgabe."
Pref. in English and German.
Includes 35 chorale preludes of which 31 (BWV 1090-1120) were previously unknown, 2 chorale preludes which were of doubtful attribution (BWV 719 and BWV 742), and 2 chorale preludes which were incomplete (BWV 714 and BWV 957).