Arche
... that Kent Nagano commissioned Jörg Widmann's oratorio Arche for the opening celebrations of the Elbphilharmonie , and conducted 300 performers in the premiere?
... that <a href="./Kent_Nagano" id="mwcA" rel="mw:WikiLink" title="Kent Nagano">Kent Nagano</a> commissioned Jörg Widmann's oratorio <i id="mwcQ"><b id="mwcg"><a href="./Arche_(oratorio)" id="mwcw" rel="mw:WikiLink" title="Arche (oratorio)">Arche</a></b></i> for the opening celebrations of the <a href="./Elbphilharmonie" id="mwdA" rel="mw:WikiLink" title="Elbphilharmonie">Elbphilharmonie</a> <i id="mwdQ">(pictured)</i>, and conducted 300 performers in the premiere?