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Gregorian feast included in the traditional Gallican sacramentaries, for which St. Yrieix
reserved an original introit.
The other neo-Gregorian chant that carried the St. Yrieix imprimatur was an
alleluia chosen for Barnabas as listed in the Table, whose feast was eventually added to
the Roman sanctoral. The feast of Aredius appears in one other gradual, Pa1132, but as a
Gregorian Mass with chants taken from the Common of Confessors. The entire neo-
Gregorian Mass of St. Aredius (see Section C above) appears only in Pa903. It
represents the fundamental traditions of St. Aredius at the monastery of St. Yrieix. 58
2. Conclusion
In conclusion, the establishment of St. Yrieix chose to include thirty-three proper
feasts for regional saints of Aquitaine that were not included in the international
Gregorian calendar. Many of these feasts were common to many churches of Aquitaine,
such as the feasts of St. Benedict and St. Martin, as well as the popular traditional
Gallican celebrations of the Finding of the Cross, the Chair of Peter, the Conversion of
Paul, and others. St. Yrieix celebrated St. Benedict with the neo-Gregorian Mass chants
of Aquitaine in Pa903 and with an unicum alleluia. In Pa776 (Gaillac) the Mass for St.
Benedict with Aquitanian music (as found in Pa903) was included with a second Mass
with the Cassinese chants. 59 The presence of the neo-Gregorian chants in so many of the
feasts of the sanctoral of Pa903 illustrates the commitment of the St. Yrieix cantors to
maintain currency in the trends of liturgical music composition of the period. It was by
this means that they honored the saints of particular importance to the region and locality.
58 Detailed comparison of the distribution of concordances with the neo-Gregorian chants in
Pa903 in the Aquitanian graduals is provided in Appendix A5-2.
59 Nardini and others have concluded that the Mass was probably formulated at Montecassino.
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