composition for voice and piano
...that Mozart never finished his composition for voice and piano to celebrate the Great Siege of Gibraltar during the American Revolutionary War?
...that Mozart <a class="mw-redirect" href="./Unfinished_work" id="mwDvA" rel="mw:WikiLink" title="Unfinished work">never finished</a> his <b id="mwDvE"><a class="mw-redirect" href="./Bardengesang_auf_Gibraltar:_O_Calpe!_Dir_donnert's_am_Fusse" id="mwDvI" rel="mw:WikiLink" title="Bardengesang auf Gibraltar: O Calpe! Dir donnert's am Fusse">composition for voice and piano</a></b> to celebrate the <a href="./Great_Siege_of_Gibraltar" id="mwDvM" rel="mw:WikiLink" title="Great Siege of Gibraltar">Great Siege of Gibraltar</a> during the <a href="./American_Revolutionary_War" id="mwDvQ" rel="mw:WikiLink" title="American Revolutionary War">American Revolutionary War</a>?