Both 81 and 82 are discussed earlier in the thread.
81 is a very old carol, quite famous and quite beautiful, although it deals with Herod massacaring babies. That's probably why its not a carol one hears often on pop stars' Christmas albums. Named for where it is most famously performed.
82 I thought the first two words are a bit weak for the definition but it just about ****es. What does one do in the last word?