Services at most Roman Catholic cathedrals
Mass is the central act of worship, culminating in the celebration of the sacrament of the Eucharist (which means ‘Thanksgiving’ in Greek). There are five parts of a Mass, all with Latin names as the Mass is normally sung in Latin (Gloria, Credo, Sanctus, Benedictus, and Agnus Dei).
Vespers is the evening prayer of thanksgiving and praise in Catholic and certain other Christian liturgies. Vespers and lauds (morning prayer) are the oldest and most important of the traditional liturgy of the hours. The antiphons, psalms, hymn and magnificats which are sung at this service have been set to music by many different composers.