=031  ##$aNA$dNA$eNA
=001  1000001454
=041  ##$aLatin
=100  ##$aJosquin Desprez$dc1450-1521$0179
=240  ##$aMissa Mater patris: Sanctus: Pleni sunt$kOrdinary of the Mass$m2vv, 2 in 1, A1, A2$oMass section$0462
=245  ##$aScottish Anonymous
=300  ##$aNA
=500  ##$aNA
=773  ##$w1000000214
=852  ##$aGB-Lbl$cAdd. 4911$eBritish Library$x170
=695  ##$ainterval canon$b1$c2$dex$e2nd$fAbove$g2$hsemibreve(s)$oNA$01128