For a very long time music was not written down. It was sung or played from memory. As it was passed on from person to person, many changes crept into the tunes. A way of writing music down was needed so that it would be sung or played exactly as it had been composed. The name for written music that man developed is notation. The system of musical notation generally used today is the result of centuries of development- from about the end of the ninth century to the early 1700's. This development began in the cathedrals in monasteries of t ....