David Lanz : O Come, O Come, Emmanuel
The origin of this Advent hymn is lost to time---some sources say it began as an 8th century Gregorian chant, some say it's from the 12th century, some say it's later. Regardless, it's got this great minor key going for it (rare for Christmas music), which I love. This version in particular by new-age artist David Lanz is special to me. A good friend who was the organist at the church I used to attend always began Advent with this arrangement. I especially like the phrasing, the way Lanz makes you wa-a-i-i-t for resolution, just like Advent itself. It's already a bit late in the season to listen to it, I suspect, but I hope you like it too, regardless of the day.