Phil Holmes <email <at> philholmes.net> writes:
http://lilypond.org/doc/v2.17/Documentation/notation/vertical-collision-
avoidance -
at the bottom of the page, we have an example that says:
"the markup is too close to the following note"
The example is trying to show that there is a way to prevent markup from
sliding down alongside or close to notes (or any other objects).
There is enough space for the markup to be placed lower than the
neighboring high notes, or else it would not be placed there, but maybe
in some cases we need more clearance.
Maybe "in the example below, if you did not want the text placed alongside
the ledger lines of the following note, you could increase the required
horizontal clearance."