Madurell Marimón 1956: 1; Bernardo Ferrer, beneficed-priest at Barcelona Cathedral leaves some chant-books to the cathedral, placed in hands of Berengarius Bos, master of the choirboys ('escolans'): 'Unum librum Responsorium, Dominicale et Sanctorale; Item, quendam librum in quo est plusquam medium Dominicale; Item, tres libros de ymnis; Item unum librum veterum de ymnis; Item unum librum comunem Responsorium. Item IIIIor libros Feriales.'