Having run out of new music from liturgies posted here I am returning to my survey of the OCP Guitar Accompaniment Book.
90 Celtic Alleluia: Sending Forth (verses for sending forth in the sample at OCP)
92 Change Our Hearts
This song is “What Child Is This ?” with a song by Scott Soper as a counter melody. It is a rather beautiful song for Advent. The text and some commentary is here. OCP have the sheet music.
I’ve kept the “What Child Is This?” melody lower so you can hear the newer tune.
You’ll get a better idea from the Notre Dame Folk Choir: