Processional (from Lat. liber processionalis, processionale, processionarium)
- Michel Huglo
A small portable liturgical book of the Western Church, containing the chants, rubrics and collects appropriate to liturgical processions. It is of particular musical interest since it contains antiphons, verses, rhymed Preces and even polyphonic chants that do not occur in other liturgical books. Like the pontifical, it was a comparatively late addition to the repertory of official liturgical books, originating in the 10th and 11th centuries; the processional antiphons are much older, and formerly occurred in the gradual....