Re: creating .ly files

[Richard Shann]

In addition to what I wrote below, if the files compile correctly
against a LilyPond version that you have you could always tell Denemo
to use that version (via Edit->Change Preferences->Externals->lilypond)
though at some point you may be forced to upgrade...
Richard
On Sat, 2022-06-18 at 22:49 +0200, Michael Wossog wrote:
> So, I have copied the 4 include files 
> zither-tab-default-bar-lines.ly
> zither-tab-functions.ly
> zither-tab-layout.ly
> zither-tab-titling.ly
> in /usr/share/lilypond/2.22.0/ly
> The content of zither-tab-01.ly comes at the end of "Temporary Score
> Layout".
> Well, if you comment out the line \include "zither-tab-layout.ly" and
> then do "Typeset", comes a small window "Spurious line number" and
> after "Close" it, you have the attached PDF.
> Maybe you can narrow down the errors that way. Shurely you should
> inspect the file zither-tab-layout.ly first.

There is no need to squeeze the LilyPond text into Denemo in order to
get that PDF, I see that by compiling zither-tab-01.ly after omitting
zither-tab-layout.ly you get that PDF with the error messages:

8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><

Starting lilypond 2.22.0 [zither-tab-01.ly]...
Processing `/tmp/frescobaldi-yr9zy20f/tmpvwg9aijl/zither-tab-01.ly'
Parsing...
/home/rshann/Desktop/zither-tab-functions.ly:671:17: error: unknown
escaped string: `\akkord-zither-layout'
      \layout { 
                \akkord-zither-layout } 
/home/rshann/Desktop/zither-tab-functions.ly:671:39: error: syntax
error, unexpected '}', expecting '.' or '='
      \layout { \akkord-zither-layout 
                                      } 
/tmp/frescobaldi-yr9zy20f/tmpvwg9aijl/zither-tab-01.ly:123:4: error:
error in #{ ... #}
   
   \akkordZitherTab 
Interpreting music...
warning: forced break was overridden by some other event, should you be
using bar checks?
Preprocessing graphical objects...
Calculating line breaks... 
Drawing systems... 
Finding the ideal number of pages...
Fitting music on 1 or 2 pages...
Drawing systems...
Converting to `zither-tab-01.pdf'...
fatal error: failed files: "/tmp/frescobaldi-
yr9zy20f/tmpvwg9aijl/zither-tab-01.ly"
Exited with return code 1.

8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><

(this is after running convert-ly). As I say, fixing this will require
some LilyPond expertise - the most likely place to get help is the
original author of those files, but if they are not available I suggest
you put the problem to the LilyPond user mailing list. Once you know
the LilyPond syntax that you want to generate you could use Denemo to
enter the music you want and get it to output the PDF you want by
wrapping the output syntax with the needed incantations.

HTH

Richard

> Greetings and nice evening, Michael
> 
> 
> Am 18.06.22 um 18:42 schrieb Richard Shann:
> On Sat, 2022-06-18 at 17:07 +0100, Richard Shann wrote:
>  
> > On Sat, 2022-06-18 at 16:26 +0200, Michael Wossog wrote:
> >  
> > > I managed to open and include the files in Denemo. In Denemo
> > > comes
> > > the same error as you described from Frescobaldi (attached)
> > > 
> > >  Typesetting ...Done/usr/share/lilypond/2.22.0/ly/init.ly:74:2:
> > > Fehler: falscher Typ für Argument 1; duration erwartet, "4"
> > > gefunden
> > >  #
> > >   (let ((book-handler (if (defined? 'default-toplevel-book-
> > > handler)
> > > /usr/share/lilypond/2.22.0/scm/parser-ly-from-scheme.scm:24:18:
> > > In
> > > procedure reverse! in expression (ly:parse-string-expression
> > > clone
> > > lily-string ...):
> > > /usr/share/lilypond/2.22.0/scm/parser-ly-from-scheme.scm:24:18:
> > > Wrong
> > > type argument in position 1: (1 "4" . #...
> > > 
> > > The files probably need an upgrade.
> > Running the upgrade from within Frescobaldi gives:
> > 
> > convert-ly (GNU LilyPond) 2.22.0
> > 
> > convert-ly: Processing `'... 
> > Applying conversion: 2.19.49, 
> > Not smart enough to convert "output-attributes".
> > Previously the "id" grob property (string) was used for SVG output.
> > Now "output-attributes" (association list) is used instead.
> > Please refer to the manual for details, and update manually.
> > 2.20.0, 2.21.0, 2.21.2, 2.22.0
> > 
> > so you would need to understand the syntax around output-attributes
> strangely output-attributes is not part of the original syntax, but
> part of the conversion:
> 
> %    \override Glissando.id = #(lambda (g) "foo")
> 
> in zither-tab-01.ly has become
> 
> %    \override Glissando.output-attributes = #(lambda (g) "foo")
> 
> after conversion. But as this is just a comment, it cannot matter.
> 
> But sadly, the error message persists. This is something for the
> lilypond-user@gnu.org mailing list...
> 
> Richard
> 
> 
>