A 160-page notebook, dated 1780, was found in an attic of a private home in the Austrian city of Tyrol, The book contains compositions by Leopold Mozart as well a an "Allegro Molto" by Signore Giovane Wolfgango Mozart. Specialists believe it is a piece written by Wolfgang Mozart in 1767.

An excerpt of the piece can be heard here: http://www.bbc.co.uk/news/entertainment-arts-17490070

[source: latimesblogs.latimes.com]