Re: Vertical spacing help

[Jean Abou Samra]

Le 22/03/2021 à 20:13, Dimitris Marinakis a écrit :
> I'm having trouble with the vertical spacing of an orchestral score. 
> One StaffGroup for some odd reason doesn't respond to any of the 
> StaffGrouper overrides. (no other overrides used at the Staff level).
>
> It uses a hidden second stave. Problem is if I reduce the spacing 
> between the two grouped staves when only the 1st staff is visible it 
> messes the spacing... No matter what I do Lilypond wants to space the 
> grouped staves very far apart which results in strange spacing in some 
> busier pages. I've spent hours trying to figure out how to solve this 
> problem.
>
> The file is big and has a lot of dependencies so I cannot even make a 
> tiny example or even share the file itself since I'd have to force you 
> to include the exact same fonts and all kinds of random included files.
>
> See the attached image.
>
> I know this post may be useless but if you have a lot of experience 
> with Lilypond please contact me so I can share the file with you in 
> private, even if it won't compile.


1. Don't panic. LilyPond has a solution for everything.

2. In hopeless cases, you can always set the distances explicitly as 
explained in 
http://lilypond.org/doc/v2.22/Documentation/notation/explicit-staff-and-system-positioning

3. What is wrong with this?

\version "2.23.1"

<<
  \new StaffGroup \with {
    \RemoveAllEmptyStaves
    \override StaffGrouper.staff-staff-spacing =
      #'((basic-distance . 2)
         (minimum-distance . 2)
         (padding . 0)
         (stretchability . 0))
  } <<
    \new Staff { c'1 \break c'1 }
    \new Staff { r1 c'1 }
  >>
  \new StaffGroup <<
    \new Staff { c'1 c'1 }
    \new Staff { c'1 r1 }
  >>
>>

4. If you're in trouble, take a look at

https://lists.gnu.org/archive/html/lilypond-user/2019-07/msg00231.html

It's an extensive example of spacing options that Harm posted some time 
ago on this list. I have found it useful.

Best,
Jean