=031  ##$a1.71.1.$dNA$eNA
=001  1000000495
=041  ##$aLatin
=100  ##$aPycard$dfl. 1410$099
=240  ##$aCredo (OH no. 71)$kOrdinary of the Mass$m5vv, 3 in 1 (trebles), Ct, T$oOrdinary setting$0138
=245  ##$aOld Hall Manuscript
=300  ##$aparts, f.59v-60
=500  ##$aNA
=773  ##$w1000000029
=852  ##$aGB-Lbl$cAdd. 57950$eBritish Library$x170
=695  ##$aunison canon$b1$c3$dex$eunison$fNA$g4$hbreve(s)$oc$0125