Researcher : Two pieces likely composed by Mozart before he could write music . The two compositions -- a concerto in G and a prelude in G -- have long been in the files at the International Mozarteum Foundation in Salzburg , Austria , as anonymous works and were even published in the book `` New Mozart Edition '' in 1982 . Mozart 's father probably transcribed the music , researcher says . Comment: Pieces were in book compiled by Mozart 's father .
Researcher : Two pieces likely composed by Mozart before he could write music . Mozart 's father probably transcribed the music , researcher says . Comment: Pieces were in book compiled by Mozart 's father .