Ute Trekel-Burckhardt
... that while Ute Trekel-Burckhardt was a leading mezzo-soprano of the State Opera of East Berlin, she appeared as the Rosenkavalier in Vienna, and in the premiere of Sutermeister's Le roi Béranger in Munich?
... that while <b id="mwCEo"><a href="./Ute_Trekel-Burckhardt" id="mwCEs" rel="mw:WikiLink" title="Ute Trekel-Burckhardt">Ute Trekel-Burckhardt</a></b> was a leading <a href="./Mezzo-soprano" id="mwCEw" rel="mw:WikiLink" title="Mezzo-soprano">mezzo-soprano</a> of the <a href="./Berlin_State_Opera" id="mwCE0" rel="mw:WikiLink" title="Berlin State Opera">State Opera of East Berlin</a>, she appeared as the <a href="./Der_Rosenkavalier" id="mwCE4" rel="mw:WikiLink" title="Der Rosenkavalier">Rosenkavalier</a> in Vienna, and in the premiere of <a href="./Heinrich_Sutermeister" id="mwCE8" rel="mw:WikiLink" title="Heinrich Sutermeister">Sutermeister</a>'s <i id="mwCFA">Le roi Béranger</i> <a href="./Bavarian_State_Opera" id="mwCFE" rel="mw:WikiLink" title="Bavarian State Opera">in Munich</a>?