Ken Myers has written a wonderful post on Christmas music, emphasizing particularly how it is sung by choirs and its connection to worship in the liturgy. He includes a fascinating discussion of how music can be a contemplation of divine mysteries, as in the harmonies of this piece, “Mirabile mysterium” to this text:
“A wondrous mystery is declared today, an innovation is made upon nature; God is made man; that which he was, he remains, and that which he was not, he takes on, suffering neither commixture nor division.”
The composer is Jacob Handl (sometimes called “Gallus”), not to be confused with George Friedrich Handel. Read what Myers says about it after the jump.