A previously unknown piece of music likely composed by a teenage Wolfgang Amadeus Mozart was recently uncovered at a library in Germany. The piece, which dates to the mid- to late-1760s, consists of seven miniature movements for a string trio. It lasts around 12 minutes, researchers with the Leipzig Municipal Libraries said in a statement.

The 12-minute piece by Austrian composer, Wolfgang Amadeus Mozart, is called "Ganz kleine Nachtmusik" and was likely written when he was a teenager sometime in the mid-to late-1760s. Leipzig Municipal Libraries revealed the good news in a statement and that the piece will have its debut on Saturday at the Leipzig Opera.

Leipzig Municipal Libraries have uncovered a previously unheard composition for a string trio written by a young Mozart.

Turns out there’s at least one piece of music by Mozart that has not been studied and performed to death. As The Guardian reports, a previously unknown composition by Mozart has been discovered in a German library.

A previously unknown piece of music composed by Wolfgang Amadeus Mozart when he was probably in his early teens has been uncovered at a library in Germany, researchers said Thursday.

The string trio, probably written in the composer’s teens, was found in a library as archivists compiled an updated catalog of his work