The celebration of the Eucharist … should go without saying:
8. The celebration of the eucharist is inseparably bound up with the rite of the dedication of a church; when a church is dedicated therefore the liturgical texts of the day are omitted and texts proper to the rite are used for both the liturgy of the word and the liturgy of the eucharist.
9. It is fitting that the bishop concelebrate the Mass with the priests who take part with him in the rite of dedication and those who have been given charge over the parish or the community for which the church has been built.
Nothing a surprise in RDCA 8-9. Here’s something to attract attention:
10. The day on which a church is dedicated is kept as a solemnity in that church.
The office of the dedication of a church is celebrated, beginning with Evening Prayer I. When the rite of depositing relics takes place, it is highly recommended to keep a vigil at the relics of the martyr or saint that are to be placed beneath the altar; the best way of doing this is to have the office of readings, taken from the respective common or proper. This vigil should be properly adapted to encourage the people’s participation, but the requirements of the law are respected. (GILH 270-273)
The fullest possibility would be Evening Prayer I on the dedication vigil, probably a bit after the Saturday Mass. The question here would be when to schedule the Office of Readings. Dedication weekend would likely be full, especially given a full Sunday Mass schedule. A mature community might keep a late-night vigil. These two liturgies give a music ministry a chance to really shine. What are your thoughts on this?