+The following variables are effective only when @code{page-breaking}
+is set to @code{ly:page-turn-breaking}. Page breaks are then chosen
+to minimize the number of page turns. Since page turns are required
+on moving from an odd-numbered page to an even-numbered one, a
+layout in which the last page is odd-numbered will usually be
+favoured. Places where page turns are preferred can be indicated
+manually by inserting @code{\allowPageTurn} or automatically by
+including the @code{Page_turn_engraver} (see @ref{Optimal page turning}).
+
+If there are insufficient choices available for making suitable page
+turns, LilyPond may insert a blank page either within a score, between
+scores (if there are two or more scores), or by ending a score on an
+even-numbered page. The values of the following three variables may
+be increased to make these actions less likely.
+
+The values are penalties, i.e. the higher the value the less likely
+will be the associated action relative to other choices.
+
+@table @code
+
+@item blank-page-penalty
+@funindex blank-page-penalty
+
+The penalty for having a blank page in the middle of a score. If
+@code{blank-page-penalty} is large and @code{ly:page-turn-breaking} is
+selected, then LilyPond will be less likely to insert a page in the
+middle of a score. Instead, it will space out the music further to
+fill the blank page and the following one. Default: 5.
+
+@item blank-last-page-penalty
+@funindex blank-last-page-penalty
+
+The penalty for ending the score on an even-numbered page. If
+@code{blank-last-page-penalty} is large and
+@code{ly:page-turn-breaking} is selected, then LilyPond will be less
+likely to produce a score in which the last page is even-numbered.
+Instead, it will adjust the spacing in order to use one page more or
+one page less. Default: 0.
+
+@item blank-after-score-page-penalty
+@funindex blank-after-score-page-penalty
+
+The penalty for having a blank page after the end of one score and
+before the next. By default, this is smaller than
+@code{blank-page-penalty}, so that blank pages after scores are
+inserted in preference to blank pages within a score. Default: 2.
+
+@end table
+
+