Re: Orgmode Latex Export with Babel/LilyPond

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

On Sun, 2020-01-12 at 10:43 +1300, adam wrote:
> On Sun, 2020-01-12 at 09:04 +1300, adam wrote:
> > 
> > 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. 
> > 
> 
> OK, my bad.  When I look inside  ob-lilypond.el  I find I pulled a page of markup
> stuff. 
> Will grab a proper  ob-lilypond.el    That will improve matters.   


Improvement with correct  ob-lilypond.el   Now the (org-babel-do-load-languages ..) 
doesn't cause Emacs to report error at Emacs start-up. 

Presently, with examples  modal-cycle.org  modal-cycle-2.org  modes-in-key-of-C.org 
I can  C-c C-e l p  export to PDF, but there's no music symbols. 

Also I have no M-x ly-*  commands available. 

Org Customize Option, babel, lilypond, for  org-babel-lilypond-commands  is set to  nil