Re: Orgmode Latex Export with Babel/LilyPond

[adam <ahcnz@orcon.net.nz>]

On Sat, 2020-01-11 at 12:30 -0300, Jonathan Gregory wrote:
> 
> On 11 Jan 2020, adam <ahcnz@orcon.net.nz> wrote:
> 
> > 
> > Still no success in tangling the examples  modal-cycle.org  modal-cycle2.org  
> > shown here, 
> > https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-lilypond.html 
> > 
> > My current problem is Emacs rejecting the addition of either Lilypond or 
> > lilypond, in the  org-babel-do-load-languages  
> > 
> >    (org-babel-do-load-languages
> >      'org-babel-load-languages
> >      '(
> >        (emacs-lisp . t)
> >        (shell . t)
> >        (org . t)
> >        (Lilypond . t)
> >        )) 
> > 
> > including either in the last line causes an error at Emacs startup, reported as, 
> > 
> >    Warning (initialization): An error occurred while loading ‘/home/user/.emacs’:
> >    Symbol's value as variable is void: <!DOCTYPE
> > 
> > 
> > Earlier in my .emacs init file, I had hopefully defined lilypond, thus 
> > 
> >    (setq ly-nix-ly-path "lilypond")
> > 
> >    (add-to-list 'load-path "/usr/share/emacs/site-lisp/") 
> > 
> >    (autoload 'LilyPond-mode "lilypond-mode")
> > 
> >    (setq auto-mode-alist
> >          (cons '("\\.ly$" . LilyPond-mode) auto-mode-alist))
> > 
> >    (add-hook 'LilyPond-mode-hook (lambda () (turn-on-font-lock))) 
> > 
> > 
> > In  /usr/share/emacs/site-lisp/   many lilypond related .el files 
> > are located,
> > 
> >    lilypond-font-lock.el
> >    lilypond-indent.el
> >    lilypond-init.el
> >    lilypond-mode.el
> >    lilypond-song.el
> >    lilypond-what-beat.el
> >    lilypond-words.el
> >    ltx-help.el
> >    ob-lilypond.el
> >    ob-Lilypond.el
> >    ob-lisp.el
> >    org-tests.el
> > 
> > 
> > $ which lilypond     is unhelpful,
> > 
> >    /usr/bin/lilypond 
> > 
> > 
> > The lilypond installation is at, 
> > 
> >    /usr/share/lilypond/2.18.2/ 
> > 
> > 
> > Any advice or suggestions would be most welcome. 
> Version 9.1.9 comes with ob-lilypond.el. There's no ob-babel-lilypond.el AFAIK. Also,
> where is ly-nix-ly-path and other ly-* variables defined? I don't see these variables.
> 

Thank you. I'll look inside ob-lilypond.el  for clues, variables to be defined.  


Org-mode version 9.1.9 (release_9.1.9-65 ...) @ /usr/share/emacs/26.3/lisp/org 
on Ubuntu 18.04

$ find / -name "ob*.el"     locates only the ob-lilypond.el  I downloaded from github
                         
 
Maybe I need a (require 'lilypond) somewhere, I was thinking. 


Its a new system here. Emacs was installed with Ubuntu's software manager, lilypond 
was installed with $ sudo apt install lilypond     Neither were built from source.