page-layout

This openLilyLib package provides functionality to work with page layout in the Lilypond notation program.

Conditional Breaks

The conditional-breaks module allows the application of alternative sets of line/page breaks, e.g. to reflect different musical sources or to match the layout of the engraver's copy while entering the music. This works unintrusively as the breaks are not mixed with the content in any way.

\version "2.19.36"

\include "oll-core/package.ily"

\loadPackage \with {
  modules = conditional-breaks
}
page-layout


% Register two alternative break sets.
\registerBreakSet original-edition
\setBreaks original-edition line-breaks #'(3 (4 2/4) 6 13)
\setBreaks original-edition page-breaks #'(8)
\setBreaks original-edition page-turns #'(15)

\registerBreakSet manuscript
\setBreaks manuscript line-breaks #'(5 10 17 24)
\setBreaks manuscript page-breaks #'(13)

% Configure which breaks to respect
%\setOption page-layout.conditional-breaks.use #'(line-breaks page-breaks)
%\setOption page-layout.conditional-breaks.use page-breaks
%\setOption page-layout.conditional-breaks.use line-breaks
%\setOption page-layout.conditional-breaks.use all

% Apply a break set. (Applying multiple sets will use *all*)
\applyConditionalBreaks original-edition
%\applyConditionalBreaks manuscript

{
  \repeat unfold 40 c''2
}