| BA 5056-01 | Series IV, 1 | Organ Works 1: Orgelbüchlein BWV 599–644, BWV 620a, 630a, 631a, 638a – Six Chorales of different kinds (Schubler Chorales) BWV 645–650 – Chorales Partitas BWV 766–768, BWV 770 – Appendix | Löhlein, Heinz H. | Score | 1983, 2/2012 |
| BA 5056-41 | Series IV, 1 | Organ Works 1: Orgelbüchlein BWV 599–644, BWV 620a, 630a, 631a, 638a – Six Chorales of different kinds (Schubler Chorales) BWV 645–650 – Chorales Partitas BWV 766–768, BWV 770 – Appendix | Löhlein, Heinz H. | Critical Commentary | 1987 |
| BA 5009-01 | Series IV, 2 | Organ Works 2: The Organ Chorales from the Leipzig Original Manuscript | Klotz, Hans | Score | 1958, 2/1973, 3/1975, 4/1978, 5/1981 |
| BA 5009-41 | Series IV, 2 | Organ Works 2: The Organ Chorales from the Leipzig Original Manuscript | Klotz, Hans | Critical Commentary | 1957 |
| BA 5017-01 | Series IV, 3 | Organ Works 3: Seperate Organ Chorales Movements from Various Sources | Klotz, Hans | Score | 1961, 2/1973, 3/1974, 4/1976, 5/1981, 6/1988 |
| BA 5017-41 | Series IV, 3 | Organ Works 3: Seperate Organ Chorales Movements from Various Sources | Klotz, Hans | Critical Commentary | 1962 |
| BA 5033-01 | Series IV, 4 | Organ Works 4: Third Part of the Klavierübung | Tessmer, Manfred | Score | 1969, 2/2012 |
| BA 5033-41 | Series IV, 4 | Organ Works 4: Third Part of the Klavierübung | Tessmer, Manfred | Critical Commentary | 1974 |
| BA 5028-01 | Series IV, 5 | Organ Works 5: Preludes, Toccatas, Fantasias and Fugues I | Kilian, Dietrich | Score | 1972, 2/2012 |
| BA 5028-41 | Series IV, 5 | Organ Works 5
(with Crit. rep. for Ba 5025) Part Volume 1–3 | Kilian, Dietrich | Critical Commentary | 1978/79 |
| BA 5025-01 | Series IV, 6 | Organ Works 6: Preludes, Toccatas, Fantasias and Fugues II – Early Versions and Variants of I and II | Kilian, Dietrich | Score | 1964, 5/2013 |
| BA 5057-01 | Series IV, 7 | Organ Works 7: Six Sonatas and various Single Works | Kilian, Dietrich | Score | 1984, 2/2013 |
| BA 5057-41 | Series IV, 7 | Organ Works 7: Six Sonatas and various Single Works | Kilian, Dietrich | Critical Commentary | 1988 |
| BA 5051-01 | Series IV, 8 | Organ Works 8: Arrangement of Music from other Composers | Heller, Karl | Score | 1979, 2/1985 3/2014 |
| BA 5051-40 | Series IV, 8 | Organ Works 8: Arrangement of Music from other Composers | Heller, Karl | Critical Commentary | 1980 |
| BA 5097-01 | Series IV, 9 | Organ Works 9: Organ Chorales from the Neumeister Collection | Wolff, Christoph | Score | 2003 |
| BA 5097-41 | Series IV, 9 | Organ Works 9: Organ Chorales from the Neumeister Collection | Wolff, Christoph | Critical Commentary | 2003 |
| BA 5290-01 | Series IV, 10 | Organ Works 10: Organ Chorales from Miscellaneous Sources | Emans, Reinmar | Score | 2007 |
| BA 5290-41 | Series IV, 10 | Organ Works 10: Organ Chorales from Miscellaneous Sources | Emans, Reinmar | Critical Commentary | 2008 |
| BA 5100-01 | Series IV, 11 | Organ Works 11: Freely Composed Organ Works and Chorale Partitas from Miscellaneous Sources | Bartels, Ulrich
Wollny, Peter | Score | 2003 |
| BA 5100-41 | Series IV, 11 | Organ Works 11: Freely Composed Organ Works and Chorale Partitas from Miscellaneous Sources | Bartels, Ulrich
Wollny, Peter | Critical Commentary | 2004 |
