In the OCIA, if you do this particular rite during Mass, it takes place of the Introductory Rites. There is an antiphon from Psalm 34 prescribed for the procession of the catechumens into the church but I couldn't find any music for it. I wrote this metric antiphon that will work for my purposes and pointed the psalm verses to Anglican chant. I think the new OCIA uses Abbey Psalms and Canticles? Anyway, just wanted to share!