[tei-council] <notatedMusic> changes required

[Sebastian Rahtz]

> Well, surely the fact that the music notation is included incline is a 
> feature of the <notatedMusic>, not of the <ptr/> to some representation 
> of it within. If the music notation is in the original document, then 
> the ptr is not a feature of that document so makes no sense carrying 
> @rend at all.

And so ptr is the wrong element, and we want the more general external thing equiv of graphic... 

Sebastian