| Liturgical fragments in Brussel: KB Albert I |
The KB Albert I in Brussel possesses some folders containing fragments. Many of the fragments show notations usually found in the Low Countries: Hufnagelschrift, square notation, and the Flemish variant of Lorraine notation. Some of them apparently originated elsewhere, bearing for instance Aquitanian neumes.
 | B-Br 408, fol. 1: noted breviary fragment, 13th century (see BNM) |
| | B-Br II 266 (cat.nr. 714), various liturgical fragments |
| | B-Br II 1600 (cat.nr. 713), various liturgical fragments |
| | B-Br II 3031, noted breviary fragment, 13th century (see BNM) |
| | B-Br IV 42, various fragments |
| | B-Br IV 56, 3 fragments |
| | B-Br IV 59, fragments |
| | B-Br IV 625, various fragments |
| | B-Br IV 626, various fragments |
| | B-Br IV 627, various fragments |
| | B-Br IV 628, various fragments |
| | B-Br IV 629, various fragments |
| | B-Br IV 630, various fragments |
| | B-Br IV 829 fragment from a gradual from a parish near Gent (Strohm 1985, p. 121 and p. 172 note 70) |
Two fragments of a noted breviary (14th-15th century) are used as flyleaves in B-Br 4249-50, breviary in vernacular from Utrecht.
Ms B-Br 15132 has a 16th century office fragment in the binding, (Van den Gheyn I, p. 238).