=033  ##$a1550
=001  1000000288
=240  ##$aNA$02
=245  ##$aMs. 27
=300  ##$amanuscript of polyphony, $c730 x 518
=340  ##$dNA
=592  ##$aNA
=774  ##$w1000001839
=774  ##$w1000001840
=774  ##$w1000001841
=852  ##$aE-Tc$cMs. 27$eArchivio y Biblioteca Capitulares de la Catedral Metropolitana$x464
=856  ##$uNA$zNA