This jazz oriented guitar arrangement of the traditional Christmas Carol is by Glenn Jarrett. This popular christmas carol probably dates from 17th century England, though the meaning of the lyrics is not understood.
There are two similar (but distinct) melodies for this carol which seem to be equally well-known, so we have published arrangements of both. We have called this one "Tune A" but if this is not the melody you are looking for try the "Tune B" version. Use these links as starting points to find arrangements for different instruments: Tune A for piano keyboard or Tune B for piano keyboard.