
1) Christmas carol
Found on
https://www.crosswordclues.com/clue/gaudete

Gaudete (eɪ; `rejoice` in Latin) is a sacred Christmas carol, which is thought to have been composed in the 16th century, but could easily have existed as a monophonic hymn in the late medieval period, with polyphonic Alto, Tenor, and Bass parts added during the 15th century, particularly due to its Medieval Latin lyrics. The song was published.....
Found on
http://en.wikipedia.org/wiki/Gaudete
No exact match found.