Lokasenna,
Here is some free information that will help you in your studies.
Unless/until you have actually read the subject of a thread you should avoid making a fool of yourself in talking on a subject you know zero about.
If/when you finally open the PDF please post us your thoughts on its content.
You are coming across as one seriously dumbed down kid who wishes to share the fact of his complete ignorance with anyone who reads this thread.
Luca Bianchini
''The Two Antifonas (1770)''
aka 'Mozart, 'Genius' and Exam Fakery (1770)''
http://www.mediafire.com/?y6x6caeo2a84yfj