introit

A hymn or psalm sung when the officiant enters at the opening of a service.

The beginning of the Mass, usually consisting of an antiphon, a psalm verse, and the Gloria Patri.

In liturgics, an antiphon sung by the priest and choir as the priest approaches the altar to celebrate the mass or communion.

A going in.

A psalm sung or chanted immediately before the collect, epistle, and gospel, and while the priest is entering within the rails of the altar.

A part of a psalm or other portion of Scripture read by the priest at Mass immediately after ascending to the altar.

An anthem or psalm sung before the Communion service.

Any composition of vocal music appropriate to the opening of church services.

A part of a psalm or other portion of Scripture read by the priest at Mass immediately after ascending to the altar.