A friend commented, however, that a list of rhyming monosyllabic Yuletide exclamations ought to include "Ho!" and where are all the Santa-themed hymns in my music selections anyway? Without further ado, I present to you the following suggested hymn list for Advent III:
Processional: Up on the housetop (New Paris)
Canticle: The twelve days of Christmas (plainsong: Mode VIII:1)
Gradual: Rudolph the red-nosed reindeer (Nasus Lucidus)
Sequence/Offertory: White Christmas (Crosby)
Communion: Baby, it's cold outside (Loesser)
Recessional: All I want for Christmas is my two front teeth (Duos dentes meos)
Of course, before the week is out I expect to hear from someone who has actually attended the service I detail above. There can remain no liturgical indignity that someone, somewhere, hasn't yet inflicted upon their congregations.
Church musicians reading this entry should know that "The twelve days of Christmas" actually works surprisingly well to the mode VIII:1 psalm tone. Armed with this knowledge, you can expect to be a smash hit at Christmas parties.