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Línies de reixeta: destacar ritmes i la relació temporal entre notes

Es poden traçar línies verticals normals entre pentagrames per mostrar la relació entre notes; malgrat això, en cas de música monofònica, podem fer invisible el segon pentagrama, i que les línies siguin més curtes, com en aquest fragment de codi.

\new ChoirStaff {
  \relative c'' <<
    \new Staff {
      \time 12/8
      \stemUp
      c4. d8 e8 f g4 f8 e8. d16 c8
    }
    \new Staff {
      % hides staff and notes so that only the grid lines are visible
      \hideNotes
      \hide Staff.BarLine
      \override Staff.StaffSymbol.line-count = #0
      \hide Staff.TimeSignature
      \hide Staff.Clef

      % dummy notes to force regular note spacing
      \once  \override Score.GridLine.thickness = #4.0
      c8 c c
      \once  \override Score.GridLine.thickness = #3.0
      c8 c c
      \once  \override Score.GridLine.thickness = #4.0
      c8 c c
      \once  \override Score.GridLine.thickness = #3.0
      c8 c c
    }
  >>
}

\layout {
  \context {
    \Score
    \consists "Grid_line_span_engraver"
    % center grid lines horizontally below note heads
    \override NoteColumn.X-offset = #-0.5
  }
  \context {
    \Staff
    \consists "Grid_point_engraver"
    gridInterval = #1/8
    % set line length and positioning:
    % two staff spaces above center line on hidden staff
    % to four spaces below center line on visible staff
    \override GridPoint.Y-extent = #'(2 . -4)
  }
}