I recently composed the following polyphonic setting of the introit for the Mass of the Day on Christmas for SSA, using the chant intonation and first line. Free PDF is available at the bottom of this post, licensed under Creative Common CC-BY-NC-ND.
About the Featured Image
The featured image is the Adoration of the Shepherds by Bartolome Esteban Murillo. It is in the public domain in the United States.
