Researcher : The pieces likely composed by Mozart before he could write music . He said Leopold Mozart transcribed his son 's early works as a way of preserving them . ` Mozart 's father probably transcribed the music , he says . Compositions have long been known but as anonymous compositions . Pieces were in manuscript form by Mozart 's father .
Researcher : The pieces likely composed by Mozart before he could write music . Mozart 's father probably transcribed the music , he says . Compositions have long been known but as anonymous compositions . Pieces were in manuscript form by Mozart 's father .