ull ▁had ▁married ▁the ▁bass ▁Max ▁Flor ▁in ▁ 1 9 0 4 , ▁and ▁in ▁her ▁later ▁years ▁lived ▁in ▁Sch wer in ▁where ▁she ▁taught ▁singing . ▁She ▁died ▁there ▁on ▁ 1 4 ▁June ▁ 1 9 4 7 ▁at ▁the ▁age ▁of ▁ 7 1 . ▁ ▁Record ings ▁ ▁Kr ull ' s ▁voice ▁can ▁be ▁heard ▁on ▁a ▁complete ▁recording ▁of ▁Act ▁ 2 ▁of ▁T ann hä user ▁made ▁in ▁Berlin ▁in ▁ 1 9 0 9 ▁on ▁Ed ison ▁cyl ind ers ▁. ▁A ▁rem aster ed ▁version ▁appears ▁on ▁Wagner : ▁T ann hä user ▁Act ▁II ; ▁L ohen gr in ▁Br idal ▁Sc ene ▁ ▁( Pre iser ▁Records ▁ 8 9 9 4 9 ) ▁ ▁S ources ▁ ▁K utsch , ▁K . J . ▁and ▁R iem ens , ▁Leo , ▁Un ver gang liche ▁Stim men , ▁Fran cke ▁Verlag ▁Bern , ▁ 1 9 6 2 , ▁. ▁Ros ent hal , ▁H . ▁and ▁War rack , ▁J ., ▁The ▁Conc ise ▁Oxford ▁Dictionary ▁of ▁Opera , ▁ 2 nd ▁Edition , ▁Oxford ▁University ▁Press , ▁ 1 9 7 9 , ▁▁ ▁Category : G erman ▁oper atic ▁sop ran os ▁Category : 1 8 7 6 ▁birth s ▁Category : 1 9 4 7 ▁death s ▁Category : Pe ople ▁from ▁Rost ock ▁Category : 2 0 th - century ▁opera ▁sing ers ▁Category : 2 0 th - century ▁women ▁opera ▁sing ers