Karen Carpenter did such a beautiful job with this song. I've always loved it when she performed it, and only wish I could do it half as good. I'll have to dig deep into my style files to find something appropriate for this particular song, and because of the rapid chord changes I'm not sure I could do this song at all - never tried, though.
Gary
I play this song instrumentally every Christmas, and it always gets a nice reaction. I don't have the sheet music, so I learned it by ear.
There are some really nice chord changes in this tune, and quite a few On-Bass (or slash) chords that really have to be played in order to bring out the song's beauty.
Richard Carpenter wrote some beautiful music for the golden voice of his sister, Karen. The lyrics in this tune were by Frank Pooler, an award-winning American choirmaster, and former Director of Choral Studies at California State University. He wrote them when he was 18.
It is one of my favorite Christmas tunes to play.

Ian