This photograph taken on June 15, 2026, shows an original fragment of Wolfgang Amadeus Mozart's music handwritten notebook at Richelieu Library (Bibliotheque Nationale de France-National Library of France-BnF) in Paris. It is a rare discovery: a composition notebook by Mozart, containing seven pieces for flute and harp and the lessons he gave to the Duchess of Guînes, has been found thanks to the perseverance of a curator at the Bibliothèque nationale de France (BnF). (Photo by Kenzo TRIBOUILLARD / AFP via Getty Images)