> one small comment: in some cases there is not much difference
> between lily and your algorithm. Lily doesn't yet use accurate
> bboxes for the naturals, so it won't squash them as close your
> solution.
I've mentioned this already in the algorithm version with images.
Note that the images show extreme cases which demonstrate the full
usage of the rules. A lot of simpler situations are handled
incorrectly by LilyPond but are fine with my proposal, as the attached
image shows. The squashing is a minor detail.
Werner
