Mozartiana
... that George Balanchine only started working on his ballet Mozartiana three weeks before its premiere?
... that <a href="./George_Balanchine" id="mwBg4" rel="mw:WikiLink" title="George Balanchine">George Balanchine</a> only started working on his ballet <i id="mwBg8"><b id="mwBhA"><a href="./Mozartiana_(ballet)" id="mwBhE" rel="mw:WikiLink" title="Mozartiana (ballet)">Mozartiana</a></b></i> three weeks before its premiere?