Comment #11 on issue 1472 by address@hidden: Collision
between MMR
and key signature
http://code.google.com/p/lilypond/issues/detail?id=1472
To me the root question for Joe's original 1120 fix is probably
something like
"Do we want to have the same default extra-spacing-height for all
Items, or do we want to adjust the extra-spacing-height by type
of Grob?"
I'm afraid I don't have a good answer to that question, but I
don't know of anybody who's done more careful investigation of
spacing than Keith, so I lean towards accepting his
recommendations.