This popular christmas carol probably dates from 17th century England, though the meaning of the words is not clear. 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 (also for piano keyboard).
For other instruments based on tune A here are a range of printable versions in PDF format which may be suitable: Guitar (arranged by Glenn Jarrett), Main, High, Bass, Guitar, Clar, Horn, Sax and Viola. Teachers and accompanists (on piano or guitar) can use this Accompaniment with their students.