Knee spacing

[Rune Zedeler]

When having a knee from down to up, one should add extra space to
compensate for the beam going from right of the first note to left of
the second note. But it appears that lily does the opposite.
In this ex there is i.e. more space from note 2 to 3 than from note 1 to
2. 1 and 2 actually overlaps resulting in reverse knees :-(

-Rune

\version "1.5.12"

u = { \translator Staff = up \stemDown }
m = { \translator Staff = mid \stemUp }

global = \notes { \key fis \major \time 6/8 }

righta = \notes \transpose c'' {
 \repeat unfold 4 { \m [a,16 \u d a d] \m [c \u d c' d ] [c \m b,] [d \u d ] } ]
}


\score { \notes
  \context PianoStaff <
    \context Staff = up {
      \clef G \global \righta
    }
    \context Staff = mid {
      \clef F \global s2. *4
    }
  >
  \paper { }
}