Re: system-system-spacing in \layout block

[Jean Abou Samra]

Le 22/05/2022 à 16:10, Knute Snortum a écrit :
> On Sat, May 21, 2022 at 1:47 PM Knute Snortum <ksnortum@gmail.com> wrote:
> > On Sat, May 21, 2022 at 1:14 PM Jean Abou Samra <jean@abou-samra.fr> wrote:
> > > There is a vast array of other options available; I suggest to give
> > > more information on your score if none of these two solutions
> > > is sufficient for you.
> > Thank you, Jean.  As always, a thorough and informative answer!
> Hi Jean,
>
> While I was playing with your "macro" enlarge, I ran into a problem.
> If the left hand has notes with stems, the stem will be way too long.
>
> %%%
> \version "2.22.2"
>
> enlarge = \tweak vertical-skylines #(ly:make-unpure-pure-container
>    ly:grob::simple-vertical-skylines-from-extents)
>    \tweak Y-extent
>    \etc
>
> rightHand = { c'4 4 4 4 \break | c'4 4 4 4 }
>
> leftHand = { \clef bass \enlarge #'(-20 . 0) c4 4 4 4 | c4 4 4 4 }
>
> \score {
>     \new PianoStaff <<
>       \new Staff \rightHand
>       \new Staff \leftHand
>     >>
> }
> %%%
>
> (The main difference is that the left hand part has notes with stems.)
>
> Is there a way to fix this?  If this doesn't give way to a simple
> solution, I may post all my code to Google Drive and give a detailed
> explanation of the problem I'm facing.  (Would people feel comfortable
> clicking a Google Drive link?)


Well yes, that's the problem with this approach: it disturbs
other spacing. You could try another object, e.g.

\version "2.22.2"

enlarge = \tweak vertical-skylines #(ly:make-unpure-pure-container
  ly:grob::simple-vertical-skylines-from-extents)
  \tweak Y-extent
  \etc

rightHand = { c'4 4 4 4 \break | c'4 4 4 4 }

leftHand = { \clef bass c4\single \hide Script \enlarge #'(-30 . 0) _. 4 
4 4 | c4 4 4 4 }

\score {
   \new PianoStaff <<
     \new Staff \rightHand
     \new Staff \leftHand
   >>
}

In the end, the easiest solution might actually be overriding
the system offsets manually, as explained in
https://lilypond.org/doc/v2.22/Documentation/notation/explicit-staff-and-system-positioning.html

Jean