Coventry Carol has been popular as a Christmas Carol for some time. It did not start its life as such, however. Some investigation about its origins showed that it formed part of a Mystery Play, a play for folk people in the Mediaeval times, based on Biblical or religious motives such as the play of Everyman. Considering the text, the song is not about Christmas, but something which happened later: The Child-murder of Bethlehem by King Herod.
I arranged of Coventry Carol for four guitars. One of the guitars beats the drums, playing the chords Tambora. If you choose to play the piece in trio formation, just pick the accompaniment (parts 3 or 4) which suits best.