Re: Improves horizontal spacing of axis groups that SpanBar grobs traverse. (issue 4917046)

[tdanielsmusic]

Hi Mike
I found a visual difference with one of my scores.  I finally tracked
this down to a dependence on the stem direction.  Try this:

SopranoMusic = \relative g' {
  b2 b
  \once \override Staff . BarLine #'allow-span-bar = ##f
  b2 b
}

TenorMusic = \relative a' {
  b2 b |
  b2 b |
}

\score {
  \new GrandStaff <<
    \new Staff {
      \new Voice = "Soprano" {
        \stemDown
        \SopranoMusic
      }
    }
    \new Lyrics \lyricsto "Soprano" {
      a b long-syllable a
    }
    \new Staff {
      \new Voice = "Tenor" {
        \TenorMusic
      }
    }
  >>
}

\score {
  \new GrandStaff <<
    \new Staff {
      \new Voice = "Soprano" {
        \stemUp
        \SopranoMusic
      }
    }
    \new Lyrics \lyricsto "Soprano" {
      a b long-syllable a
    }
    \new Staff {
      \new Voice = "Tenor" {
        \TenorMusic
      }
    }
  >>
}

http://codereview.appspot.com/4917046/