Re: Concatenating LilyPond scores with different staff sizes.

[Richard Shann]

On Wed, 2022-02-09 at 09:42 -0700, Abraham Lee wrote:
> Hey, Richard!
> 
> On Wed, Feb 9, 2022 at 9:13 AM Richard Shann
> <richard@rshann.plus.com> wrote:
> > On Wed, 2022-02-09 at 13:00 +0000, Valentin Petzel wrote:
> > > Hello Richard,
> > > 
> > > I do not like to say such things, but read the docs:
> > > 
> > http://lilypond.org/doc/v2.23/Documentation/notation/setting-the-staff-size
> > > 
> > > set-global-staff-size is by definition used to set the staffsize
> > > globally. For affecting one specific score you want to use
> > layout-
> > > set-staff-size.
> > 
> > I perhaps should have given details of my experimentations with
> > this.
> > It seems that the terminology here is confusing - the set-global-
> > staff-
> > size is *not* equivalent to layout-set-staff-size on each score
> > block
> > as the following shows:
> > 
> > \version "2.22.0"
> > %#(set-global-staff-size 44)
> > \score {
> >   \layout {
> >       #(layout-set-staff-size 44)
> >     } 
> >   {e f g a}}
> > 
> > Commenting and un-commenting the set-global-staff-size shows that
> > they
> > are different, and indeed I'm not quite sure what the use-case is
> > for
> > the layout-set-staff-size, it distorts the placement of clefs/time
> > signatures.
> > I was hoping there might be a set of settings which could be used
> > to do
> > what set-global-staff-size does on each score block...
> > 
> > Richard
> > 
> > > 
> > > Cheers,
> > > Valentin
> > > 
> > > 09.02.2022 13:04:16 Richard Shann <richard@rshann.plus.com>:
> > > 
> > > > To create a single PDF of a full score and parts it is
> > convenient
> > > > in
> > > > Denemo to simply concatenate the LilyPond; something like this:
> > > > 
> > > > \version "2.22.0"
> > > > #(set-global-staff-size 20)
> > > > \markup "First"
> > > > { c d e}
> > > > #(set-global-staff-size 10)
> > > > \markup "Second"
> > > > {e f g}
> > > > 
> > > > This runs into the problem that the full score is often needed
> > at a
> > > > smaller font size and in the above code the last set-global-
> > staff-
> > > > size
> > > > is, naturally, the one used for both \score{}s.
> > > > 
> > > > I realize it may be a long shot, and a bit esoteric, but is
> > there
> > > > any
> > > > way something like that could be achieved? (I'm not seeking
> > > > radically
> > > > different approaches here as this won't be hand-written).
> > > > 
> > > > Richard Shann
> > 
> 
> 
>  In my own experimentation, there's no convenient way to get what you
> want in the same output file. The last call to set-global-staff-size
> affects the current \book. You can then re-call the command if you
> explicitly callout another \book after that, but that generates a
> separate output file for each \book block.

yes, it's quite possible then to concatenate the PDFs with ghostscript
but the pagination is wrong. 
I can't help thinking that there might be a set of individual sizes
that set-global-staff-size is affecting which could be separately
tweaked at score level. The very fact that the variable set-global-
staff-size alters the size of the markup for titles etc indicates that
the scope of the variable has drifted away from what was originally
intended. And the fact that layout-set-staff-size fails to keep clefs
and time signatures behaving properly seems strange too, perhaps there
is some further variables that will make them behave... it seems this
is a case for a LilyPond guru.

Richard