|  | B-Br II 923 (cat.nr. 555) | 
Breviarium notatum aestivalis, 15th century, probably from the Dom of Utrecht.
Hufnagel notation (Utrecht style) on black staves. Decoration: Utrecht penwork (f. 61r, 67r etc.)
Contents: 
          - f. 1r: Calendar 
          - f. 7r: Communia (In vigilia unius apostoli) 
          - f. 28r: Venitorium 
          - f. 31v: Hymns (In oct. pasche ad vesperas ymnus) (incl. for Maria
          Magdalena: Votiva cunctis; for Jacobus: Dum poli spera; for
          Martinus: Fratres unanimes and En
          gratulemur spiritu 
          - Lacuna 
          - f. 39: Easter (resp. Cum transisset sabbato etc.) 
          - f. 81v: Incipit historia libri regum (resp. Loquere domine 
          - f. 117v: Dominica I post oct. penth. 
          - f. 137r: Incipit commune confessorum infra pascha et penth. 
          - f. 139r: Proprium sanctorum (starting with Tyburtii et valeriani;
          f. 169r: Martini translatio; f. 185v: Maria ad nives; f. 205r:
          Bartholomaeus; f. 218v: Lambertus; f. 239v:
          Willibrordus;
          f. 242v: Martinus (incl. the prosula
          Euphonias videns on f. 244r); f. 245r: Lebuinus, honoured
          with mainly chants from the Commons, and only partly the proper office found in e.g.
          NL-Uu 406; f. 248v: Elisabeth
          of Hungary (Letare germania); f. 255v: Katherina
          (incl. the prosula Eterne virgo to resp.
          O mater nostra, f. 510v). 
          - f. 256r: In dedicatione ecclesie
Van den Gheyn: Manuscrits de la B.R. ..., t. I, p. 350-351 (cat.nr. 555).