TEI Council work: working with JC to edit and integrate the description of the new <notatedMusic>
element into the Guidelines. This is the first major edit I've done, so I'm going cautiously. Waiting to see if it builds OK in Jenkins. If it's OK, there's more work to be done: one more example to integrate, and then a trawl through the rest of the guidelines to see if there are other places it needs to be mentioned.