This database makes it possible to search for the responsories (singly or in sets) catalogued by René-Jean Hesbert in Corpus antiphonalium officii, vol. 5: Fontes earumque prima ordinatio (Rome 1975) and further organized by Knud Ottosen: L'Antiphonaire latin au Moyen-àge: Réorganisation des séries de répons de l'Avent classés par R.-J. Hesbert, Rerum ecclesiasticarum documenta, extra seriem (Rome 1986).
The search is position sensitive. The programme will search for a responsory (represented by its number in Hesbert's list) only at the place in the series where it is entered in the search template.
Updates: