Dominika GRABIEC, PhD, is Assistant Professor (adjunct) in the Department of Musicology of the Polish Academy of Sciences (Warsaw), member of Catalogue of Musical Sources. She studied Musicology and Italian language and culture at the University of Warsaw. Her main areas of research are musical iconography, and late medieval and post-Tridentine liturgical manuscripts, especially Dominican liturgy and plainchant. She is also a collaborator in the project “Manuscripta.pl. A guide to medieval manuscript books in Polish collections”.