It's a carol entitled, All my heart this night rejoices.
What christmas is this
I'll Be Home For Christmas
The Christmas song with the initials Z C is "Zither Carol". The song is a Bohemian/Czech Carol. There are at least two versions of the carol.
Nuttin' For Christmas.
The real book that was made the Christmas carol
Walking in the Air.
I'm dreaming of a white Christmas
While Shepherds Watched is a Christmas carol with the initials WSW.
onward christian soldiers
a silent night
Let it Snow.
Christ is Born in Bethlehem.