Original notation: Mensural notation

 

Mensural notation is the musical notation system which was used in European music from the latter part of the 13th century until about 1600. "Mensural" refers to the ability of this system to notate complex rhythms with great exactness and flexibility.

Mensural notation was the first system in the development of European music that systematically used individual note shapes to denote temporal durations.

 

For further information:

http://anaigeon.free.fr/e_index.html

www.ieee.uwaterloo.ca/praetzel/mp3-cd/info/raybro/index1.html

http://en.wikipedia.org/wiki/Mensural_notation