what can you tell me about the aforesaid song?
It is a carol on the theme of Christmas, traditionally sung at Christmas itself or during the surrounding Christmas holiday season.
Christmas carol
A Christmas carol is a carol (a song or hymn) on the theme of Christmas, traditionally sung at Christmas itself or during the surrounding Christmas holiday season. 
who was involved in the ww1 christmas truce British and German troops what is the entity about? It was a series of widespread unofficial ceasefires along the Western Front of the First World War around Christmas 1914. what happened during the christmas of 1914? The two sides sang Christmas carols and by shouted Christmas greetings to each other. were there any truces that happened later? After 1914, sporadic attempts were made at seasonal truces; a German unit attempted to leave their trenches under a flag of truce on Easter Sunday 1915 but were warned off by the British opposite them.
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Christmas carol [SEP] Introduction
A Christmas carol is a carol (a song or hymn) on the theme of Christmas, traditionally sung at Christmas itself or during the surrounding Christmas holiday season. The term noel has sometimes been used, especially for carols of French origin. Christmas carols may be regarded as a subset of the broader category of Christmas music.