Musicians this weekend will for the first time publicly interpret music for flute and harp that Wolfgang Amadeus Mozart wrote as a 22-year-old while teaching an aristocratic French student.
The unprecedented concert on Sunday at France's National Library (BnF) comes after what it has called a "major discovery."
Francois-Pierre Goy, a curator in the library's music department, stumbled across the treasure as he examined a pile of anonymous manuscripts he wanted to get through before retirement.
"I never imagined what I was about to find," he told Agence France-Presse (AFP).
The 44-page notebook includes a dozen daily exercises the Austrian prodigy gave Marie-Louise-Philippine de Bonnieres de Guines from May to July 1778, as well as seven pieces for flute and harp, he said.
