jan 1, 1280 - Franco of Cologne
Description:
The duration of any note should be determined by its appearance on the page and not by context alone.Cologne introduced longs, breves and semibreves so that the shape of the note would indicate duration.
This did not completely eliminate the context-dependency of notes.
Added to timeline:
Date:
jan 1, 1280
Now
~ 746 years ago