Christmas music: alternate tunes

The only Christmas carol tune that I actively dislike is "O Little Town of Bethlehem" (St. Louis), which I think is horribly schmaltzy. But even where I like the standard tune, sometimes I want a little variety.

Reminder: I'm looking for the following:

- A good choral performance of the Parker/Shaw arrangement of "O Sanctissima"
- A good choral performance of "Bring a Torch, Jeanette, Isabella." English, French, I'm not picky.
- A carol called "Corpus Christi Carol," but not the Jeff Buckley one. It begins "The hen flew east and the hen flew west," and it was played on "Thistle and Shamrock" a long time ago.
- Carly and Lucy Simon doing "I Heard the Bells on Christmas Day." I don't think this album was ever released on CD, but I live in hope.

And check the comments; there are several more songs there.

( Alternate tunes )