Hereford-Kremsmunster
- Hereford. Cathedral Library. Manuscript. P 9 VII. [Notated breviary from Hereford][368] manuscript leaves: illustrations, music. 3451.735.29.1 (microfilm).
- Huesca. Catedral de Huesca. Manuscript. [Proser and Ordinariumstroper]153 manuscript leaves. Music. 3457.369.11.1 (microfilm).
- Karlsruhe. Badische Landesbibliothek. Manuscript. UH. 1 (X. 1). [Cistercian Gradual, early 15th century][iii], 156 leaves: music. Original in Badische Landesbibliothek (D KA) 3473.748.82.4 (microfilm).
- Karlsruhe. Badische Landesbibliothek. Manuscript. Aug. perg. 60. [Antiphoner]276 manuscript leaves. Music. 3473.748.82.3 (microfilm).
- Karlsruhe. Badische Landesbibliothek. Manuscript. St. Peter perg. 16. [Proprium de tempore, proprium de sanctis, kyriale, troper]211 manuscript leaves. Music. 3473.748.82.1 (microfilm).
- Karlsruhe. Badische Landesbibliothek. Manuscript. St. Peter perg. 29a. [Musical treatises, processional, ordinary]39 manuscript leaves. Music. 3473.748.82.2 (microfilm).
- Kassel. Murhardsche Bibliothek der Stadt Kassel und Landesbibliothek. Manuscript. 4o Theol. 15 [Gradual][200] manuscript leaves: illustrations, music. Includes tropes, sequences, kyriale.
3474.806.23.7 (microfilm). - Kassel. Murhardsche Bibliothek der Stadt Kassel und Landesbibliothek. Manuscript. 4o theol. 25. [Monastic liturgical book from Fritzlar][120] manuscript leaves: illustrations, music. Includes a calendar, prayers, lections, sequences and tropes; possibly Benedictine. 3474.806.23.11 (microfilm).
- Köln. Historisches Archiv der Stadt Köln. Manuscript. W 301. [Gradual fragment with proses and tropes]2 manuscript leaves. Music. Bound with Mss. W 331. 3297.530.33.1 (microfilm).
- Köln. Universitäts- und Stadtbibliothek. Manuscript. 979. [Processional][152] leaves. Processional of Netherlandish origin, measuring 19 x 13.5 cm. Contains antiphons, hymns, responsories, etc., and 1 two-part work ("Ad festum leticie .. benedicat dominum"; fol. 55r-56v); music in Gothic chant notation with mensural elements. The principal part of the manuscript (fol. 1-124) was copied in the late 15th or early 16th century. The manuscript was in the possession of the order of nuns at Schonenberg 1533-1623; toward the end of the 19th century it was in the possession of Wilhelm Baumker, from whose estate it passed in 1905 to the Universitats- und Stadtbibliothek Koln. 3297.530.50.1 (microfilm).
- Kraków. Biblioteka Jagiellońska. Manuscript. BJ 2057. [Pontifical from Krakow][152] manuscript leaves: illustrations, music. 3498.131.67.6 (microfilm).
- Kremsmunster. Benediktinerstift. Manuscript. 309. [Processional troper and verses]1 manuscript volume of music. 3498.362.81.1 (microfilm).