Re: [Lilypond-auto] Issue 3631 in lilypond: 2.17 does a worse job with vertical spacing and/or the page layout than 2.16

[lilypond]

Comment #15 on issue 3631 by address@hidden: 2.17 does a worse job  
with vertical spacing and/or the page layout than 2.16
http://code.google.com/p/lilypond/issues/detail?id=3631

Comment #6 was about where the bar-numbers are assumed to go to make the  
height estimates used to break pages.

At the moment, LilyPond tries to place the BarNumber clear of the  
box-extent of the entire System, then after lines are laid out, places it  
above the skyline of the top Staff.  We can skip that first step by  
changing the default
%\override Score.BarNumber #'Y-offset =  
#side-position-interface::y-aligned-side
 to
\override Score.BarNumber #'Y-offset =  
#ly:side-position-interface::y-aligned-side
The function without "ly:" is an unpure-pure-container, which changed with  
issue 3199.

This change should probably be made default for BarNumber MetronomeMark and  
RehearsalMark.  It still includes space for the BarNumbers, etc., but  
assumes they will sit close to the staff, for purposes of estimating for  
page-breaks.

This makes annotate-spacing report more accurate heights, and reduces the  
page count in the example at the top.  (There are still smaller differences  
in page-breaks between version 2.16 and 2.17)

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