Diether de la Motte
... that Diether de la Motte, who taught composition and music theory in Berlin and Vienna, wrote an opera that premiered at the Staatsoper Hannover in 1970?
... that <b id="mwBwM"><a href="./Diether_de_la_Motte" id="mwBwQ" rel="mw:WikiLink" title="Diether de la Motte">Diether de la Motte</a></b>, who taught composition and music theory in Berlin and Vienna, wrote an opera that premiered at the <a href="./Staatsoper_Hannover" id="mwBwU" rel="mw:WikiLink" title="Staatsoper Hannover">Staatsoper Hannover</a> in 1970?