Dear Bug Squad,
This has been reported two times in lilypond-user:
http://lists.gnu.org/archive/html/lilypond-user/2011-12/msg00395.html
http://lists.gnu.org/archive/html/lilypond-user/2012-01/msg00111.html
Mark_engraver or Metronome_mark_engraver should be moveable to the
StaffGroup (and alike:
Added as http://code.google.com/p/lilypond/issues/detail?id=2199
2012/1/7 Xavier Scheuer x.sche...@gmail.com:
Dear Bug Squad,
This has been reported two times in lilypond-user:
http://lists.gnu.org/archive/html/lilypond-user/2011-12/msg00395.html