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%% (https://wiki.lilypond.community).
%%
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%% `Documentation/snippets/new/`, then run
%% `scripts/auxiliar/makelsr.pl`.
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%% This file is in the public domain.

\version "2.25.23"

\header {
  categories = "Contexts and engravers, Editorial annotations"

  texidoc = "
The appearance of grid lines can be changed by overriding some of their
properties.
"

  doctitle = "Grid lines: changing their appearance"
} % begin verbatim


\new ChoirStaff <<
  \new Staff {
    \relative c'' {
      \stemUp
      c'4. d8 e8 f g4
    }
  }
  \new Staff {
    \relative c {
      % this moves them up one staff space from the default position
      \override Score.GridLine.extra-offset = #'(0.0 . 1.0)
      \stemDown
      \clef bass
      \once \override Score.GridLine.thickness = 5.0
      c4
      \once \override Score.GridLine.thickness = 1.0
      g'4
      \once \override Score.GridLine.thickness = 3.0
      f4
      \once \override Score.GridLine.thickness = 5.0
      e4
    }
  }
>>

\layout {
  \context {
    \Staff
    % set up grids
    \consists "Grid_point_engraver"
    % set the grid interval to one quarter note
    gridInterval = #1/4
    }
  \context {
    \Score
    \consists "Grid_line_span_engraver"
    % this moves them to the right half a staff space
    \override NoteColumn.X-offset = -0.5
  }
}
