Unknown Mozart music found in French library

A French library going through its archives has turned up a previously unknown piece of music by Mozart. Ulrich Leisinger, head of research at the International Mozarteum Foundation in Salzburg, Austria, said Thursday that there is no doubt that the single sheet was written by the composer and that it is "really important." He described the work as the preliminary draft of a musical composition. He said it was found by a library in Nantes, western France, as staff were going through its archives. The city is planning to hold a news conference on the find later on Thursday.