A choirbook, mostly or entirely copied in Spain by many scribes. FabregasMBC rejects the proposed Valencian orgin of the manuscript (KnightonMM, LeeSPS) and affirms a Catalan origin.
The manuscript is in three distinct sections, re-ordered when bound together, with some later additions at the end. The oldest section ('A') comprises folios 73-137 & 179-181, and was apparently compiled from sections copied by some 18 scribes independently. 5 scribes did most of the copying and copied only Franco-Flemish (not Spanish) music; it is possible that some of this music was copied outside Spain. The second ('B') section completes a mass begun in 'A', so was clearly conceived as extending the prior collection. It consists of folios 21-59 as well as most of 60-72 & 138-154, and was mostly copied by 2 Spanish scribes (one of whom copies the music by Ockeghem & Busnoys); 5 other Spanish scribes made small additions. The third ('C') section (the only section indexed) was copied by a single Catalan scribe, who oversaw the compilation of the whole manuscript and supplied additional music for it. An inscription in Catalan on the last folio (dated December 1520) identifies him as "jo, Anthoni Johan". 'C' comprises folios 3-20, most of 60-72, and much of 138-188.
Folios 145-148 & 182-191 mostly contain later additions, although two bifolios (179-181 including 180bis) form part of the earliest 'A' section. The two scribes who added this music, all secular, also added a piece on f. 20v on previously-empty staves.
The manuscript was acquired by the (then) Biblioteca Central in 1892 from the private library of Joan Carreras y Dagas, at one time maestro di capilla at the Cathedral of Gerona.