- n arr ator ▁in ▁Le verk ü hn ' s ▁Ap ocal ysis ▁cum ▁Fig ur is ▁is ▁named ▁' Er be ' ▁( mean ing ▁' her itage ', ▁i . e . ▁inher itor ▁of ▁the ▁tradition ) ▁in ▁reference ▁to ▁him . ▁▁ ▁Two ▁other ▁German ▁oper as ▁of ▁the ▁time , ▁the ▁Berlin - based ▁Fer ru c cio ▁Bus oni ' s ▁Dok tor ▁Fa ust ▁( left ▁un fin ished ▁in ▁ 1 9 2 4 ), ▁and ▁Paul ▁Hin dem ith ' s ▁Math is ▁der ▁Maler ▁( about ▁Matth ias ▁Gr ü new ald ), ▁completed ▁ 1 9 3 5 , ▁similarly ▁explore ▁the ▁isol ation ▁of ▁the ▁cre ative ▁individual , ▁present ing ▁the ▁eth ical , ▁spiritual ▁and ▁art istic ▁cr ises ▁of ▁the ▁early ▁ 2 0 th ▁century ▁through ▁their ▁roots ▁in ▁the ▁German ▁Protest ant ▁Re formation . ▁ ▁N aming ▁Through out ▁the ▁work ▁personal ▁names ▁are ▁used ▁all us ively ▁to ▁reflect ▁the ▁paths ▁of ▁German ▁culture ▁from ▁its ▁medieval ▁roots . ▁For ▁examples , ▁Zeit bl om ' s ▁father ▁W ohl gem ut ▁has ▁the ▁reson ance ▁of ▁the ▁artist ▁Michael ▁W ohl gem uth , ▁teacher ▁of ▁Al bre cht ▁D ür er . ▁Wend ell ▁K ret z sch mar , ▁the ▁man ▁who ▁aw ak ens ▁them ▁to ▁music , ▁probably ▁hints ▁at ▁Hermann ▁K ret z sch mar , ▁musical ▁anal yst , ▁whose ▁' Gu ides ▁to ▁the ▁Con