Deck the Hall is a secular Christmas carol. The melody is Welsh and belongs to a winter carol, Nos Galan; the "fa-la-la" refrains
were probably originally played on the harp. In the eighteenth century Mozart used the tune to Deck the Hall for a violin and piano duet. J.P. McCaskey is sometimes credited
with the lyrics of Deck the Hall but he only edited the Franklin Square Song Collection in which the lyrics were first published.
The English words generally sung today are American in origin and date from the 19th century. Note that some
versions use "Deck the Halls" instead of "Deck the Hall," the more correct title.