Re: horizontal spacing regression

[Keith OHara]

On Thu, 13 Jan 2011 16:22:53 -0800, Carl Sorensen <address@hidden> wrote:

> \override Accidental #'extra-spacing-height = #'(-0.5 . 0.5)

That works nicely, on both the original music example we looked at on -user, 
and my new favorite example:

\paper { ragged-right = ##t }
\version "2.13.43"
{ \clef bass
%  \override Accidental #'extra-spacing-height = #'(-0.5 . 0.5)
  \repeat unfold 8 {f8 bes bes f }
}

The rising line of notes is usually spaced a little further apart, when 
possible, to compensate for the optical effect oval shape of the heads, as you 
and Janek have been discussing recently.  The accidental seems to cause 
LilyPond (all versions) to revert to the spacing for a constant-pitch series.  
This makes some sense because the accidental destroys the oval-shape illusion, 
but it looks strange when the accidental is crowded and nearby notes are spaced 
with the optical correction in place.

The extra-spacing-height seems to do just the right thing.  True, it gives no 
extra space when the interval is larger {c be be f } but neither did 2.12.3 and 
I think we don't need it there.

-Keith