Rorate Cæli Desuper was composed in 2017 and this Christmas carol is more an “Advent carol” as the lyrics, from the book of Isaiah (45:8), are frequently sung as a plainsong at Mass and in the Divine Office during Advent where it gives expression to the longings of Patriarchs and Prophets, and symbolically of the Church, for the coming of the Messiah. Throughout Advent it occurs daily as the versicle and response after the hymn at Vespers.
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