A manuscript cache discovered in April at a Polish monastery may contain hitherto unknown works by Mozart.

The collection, located at the Jasna Gora monastery, includes 20 manuscripts bearing Mozart’s signature. Musicologist Remigiusz Pospiech reports that 7 of the compositions found are already known as Mozart’s, and four have been identified as other composers’. Pospiech has invited scholars from the Salzburg Mozarteum to analyze the remaining nine manuscripts to determine their authenticity.

Jasna Gora, located in the town of Czestochowa in southern Poland, houses a collection of some 3000 manuscripts acquired over the centuries for the monastery’s orchestra. One of the purported Mozart works was performed during the town’s sacred music festival, Gaude Mater (Polish language page), early in May.