the attached code is my attempt to center a NoteColumn in a measure (like MultiMeasureRest).
This is really cool!
While it works fine in most cases, there is one major problem:
Having a key-change to a\minor or c\major the function should adress the keyCancellation as left bound to center the following NoteColumn.
But it doesn't, instead I get the log-warning: Infinity or NaN encountered
How to improve?
The problem is that the KeySignature grob that is selected as the left bound has an extent of (+inf.0 . -inf.0). A quick solution would be to filter out empty intervals. (See attached file.)
-David
center-note-column-09.ly