Christmas music fans keep to themselves. They’re out there, wondering if they’re weird for listening to it all year around, while those who don’t like it grouse openly and loudly, particularly when radio stations start playing it before Thanksgiving (as if it’ll make the turkey feel unloved). But Christmas is a subject for songs, just like love and money, and it’s inspired some brilliant and laughable recordings. Here are some of the finest to come out of Louisiana (and a free downloadable mi...