is , ▁Matth ae us ▁P ip el are , ▁Heinrich ▁Isaac , ▁Pierre ▁de ▁La ▁R ue , ▁Jos quin ▁des ▁Pre z , ▁Jean ▁M out on , ▁V inc en zo ▁R uff o , ▁and ▁others . ▁ ▁Some ▁masses ▁s ine ▁nom ine , ▁i . e . ▁based ▁on ▁freely - com posed ▁material , ▁were ▁actually ▁named ▁in ▁other ▁ways : ▁ ▁the ▁most ▁famous ▁is ▁Giovanni ▁Pier lu igi ▁da ▁Pal estr ina ' s ▁Miss a ▁Pap ae ▁Marcel li , ▁the ▁Pope ▁Mar cell us ▁Mass , ▁which ▁according ▁to ▁a ▁somewhat ▁ex agger ated ▁legend ▁persu aded ▁the ▁Council ▁of ▁Tr ent ▁not ▁to ▁ban ▁poly ph onic ▁writing ▁in ▁lit urg ical ▁music . ▁ ▁Also ▁many ▁can onic ▁masses ▁are ▁literally ▁s ine ▁nom ine : ▁ ▁the ▁Miss a ▁pro lation um ▁of ▁Johannes ▁O ck eg hem ▁and ▁the ▁Miss a ▁ad ▁fug am ▁of ▁Jos quin ▁des ▁Pre z ▁are ▁of ▁this ▁type , ▁as ▁is ▁the ▁late ▁Miss a ▁s ine ▁nom ine ▁by ▁Jos quin , ▁in ▁which ▁he ▁returns ▁with ▁new ▁insight ▁to ▁compos itional ▁problems ▁he ▁first ▁tack led ▁in ▁his ▁early ▁Miss a ▁Ad ▁fug am . ▁ ▁A ▁myth ▁d ating ▁from ▁the ▁time ▁of ▁the ▁Council ▁of ▁Tr ent ▁was ▁that ▁a ▁Miss a ▁s ine ▁nom ine ▁hid ▁a ▁sec ular ▁t une , ▁and ▁the ▁listen ers ▁were ▁expected ▁to ▁" get ▁the ▁jo ke "; ▁however ▁the