page Break not working between scores

[John Sellers]

In Lilypond 2.4.3-1 the pageBreaks fail in certain cases. In the 
incomplete fragment below, "I'm Getting Sentimental Over You" will be 
split between pages instead of starting at the top of the next page if 
there is not enough for all of it on the current page .

\score{
   \context ChordNames
   \transpose bes bes {
       \key c \major
       \init
       \chordmode {
         c2 a:m d:m g c a:m d:m g \bar "||" \break
         c a:m d:m g c a:m d:m g c a:m d:m g4 f e1 e2:m g \break
         c a:m d:m g c a:m d:m g c a:m d:m g4 f e1 e \break
         d:m d:m e:7 e:7 d:m d:m e:7 g:7 \break
         c2 a:m d:m g:7 c a:m d:m g:7 c a:m d:m g:7 c f c1 \pageBreak

       }
     }
   \layout { \thePaper }
   \midi{ \tempo 4 . = 110 }
     \header { piece = "Perfidia" }
}
\score{
   \context ChordNames
   \transpose bes bes {
       \key f \major
       \init
       \chordmode {
         \pageBreak f1 e:7 ees d:7 g:7 c:7 f2 fis c1:dim \break
         f1 e:7 ees d:7 g:7 c:7 des2 des:m f e:7 \break
         a1:m a1:m f:7 e:7 e:7 e:7 a2:m aes:7 g:m c:7 \break
         f1 e:7 ees d:7 g:7 c:7 f d:7 g:7 c:7 bes2 bes:m f c:7
       }
     }
   \layout { \thePaper }
   \midi{ \tempo 4 . = 110 }
     \header { piece = "I'm Getting Sentimental Over You" }
}

Actually I wish there was a way to group logical chunks such that they 
would automatically start on the next page if there is not enough room 
for them on the current page, much like Microsoft word uses the "keep 
together" option to avoid splitting paragraphs and "keep with next" to 
force related material move together to the next page if there is not 
enough room for all.  Maybe use \keeptogether {} to group one or more 
items you want on the same page, and \keepwithnext {} when you don't 
want an item dangling as the last thing on a page because it is closely 
related to the next item.

This would help eliminate having to manually fix up pagination from 
frequent changing sizes or inserting additional material into a long 
documents as I have witnessed first hand with many dealings with long 
Microsoft word documents.