English: A leaf from the 'Graduale cistersiense', showing the mass chants for the First Sunday in Advent, starting with the introit Ad te levavi. Polski: Karta z 'Graduale cistersiense'. 13th century. Graduale cistersiense
Size: 1921px × 2603px
Photo credit: © The Picture Art Collection / Alamy / Afripics
License: Licensed
Model Released: No
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