Re: Issue 1802 in lilypond: system-system-spacing in lilypond-book-file within a LaTeX file

[lilypond]

Comment #1 on issue 1802 by address@hidden: system-system-spacing in  
lilypond-book-file within a LaTeX file
http://code.google.com/p/lilypond/issues/detail?id=1802

Hello, could someone who understand this better than I let me know the  
difference between the above recommendation and using the command

\betweenLilyPondSystem

i.e. From Usage:

\betweenLilyPondSystem[1] is called between systems if lilypond-book has  
split the
snippet into several PostScript files. It must be defined as taking one  
parameter and will be
passed the number of files already included in this snippet. The default is  
to simply insert
a \linebreak.