If you can provide one more detail (composer name, choir name, or a CD title), I can locate the exact score and recording for you.
In the context of , the most probable connection is: ctc jour stockholm
Based on choral repertoire databases, "CTC Jour" is most likely a reference to — a common Latin choral introit ("Sing to the Lord a new song") — paired with a specific liturgical context: "Jour" (French for "day"). If you can provide one more detail (composer