=033  ##$a1520
=001  1000000139
=240  ##$aNA$02
=245  ##$aMS Mus. X
=300  ##$amanuscript of polyphony, $c560 x 410
=340  ##$dNA
=592  ##$aNA
=774  ##$w1000001062
=774  ##$w1000001063
=774  ##$w1000001064
=774  ##$w1000001065
=774  ##$w1000001066
=774  ##$w1000001067
=774  ##$w1000001068
=774  ##$w1000001069
=852  ##$aI-MOd$cMS Mus. X$eDuomo, Biblioteca e Archivio Capitolare$x400
=856  ##$uNA$zNA