Picardy is a hymn tune used in Christian churches, based on a French carol; it is in a minor key and its meter is 8.7.8.7.8.7. Its name comes from the province of France from where it is thought to originate. The tune dates back at least to the 17th century, and was originally used for the folk song "Jésus-Christ s'habille en pauvre". First published in the 1848 collection Chansons populaires des provinces de France, "Picardy" was most famously arranged by Ralph Vaughan …