Corpus Christi carol : for unison voices and organ in D /
Britten, Benjamin,1913-1976.
London : Chester Music,
c2009.
Britten's own arrangement of  part of the Corpus Christi carol from 'A boy was born'; originally for mixed voices with organ ad lib.
Anonymous 15th century words.
Carols, English.
Christmas music.
Choruses, Sacred (Unison) with organ.