A collation of the known fragments from Libro 2, re-used in the 1700s as binding reinforcements on other mss in the archive, with the manuscript of Libro 2 as it currently exists.
Libro de polifonia 2 is a book of polyphony for Vespers, copied by Diego Dorta (or d'Orta) under Francisco Guerrero's guidance for the Seville chapter. The fragments are those identiifed by Juan Ruiz Jiménez (see bibliography).