Installing Lilypond in (La)TeX environment

Question

Apologies if this has been asked before, but I have not found the relevant question.

I am trying to use LilyPond in a LaTeX environment.

From ChatGPT I should be able to use a simple file such as:

\documentclass{article}
\usepackage{lilypond-book}

\begin{document}

\begin{lilypond}
\relative{\time 4/4 \tempo 
          c'4 d e f g a b c } 
\end{lilypond}

\end{document}

But compiling this, using TeXShop I get an error message:

./test.tex:6: LaTeX Error: Environment lilypond undefined.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.6 \begin{lilypond}
                    
? 

The lilypond-book executable file is in the same directory as my TeX file.

It may be more appropriate to ask this in the TeX SE, but I guess my chances of an answer may be slightly better here.

Answer 1

lilypond-book does not work like that. It is not a TeX module, but a preprocessor that will compile the sources, split and crop the resulting images and create a tex file with these images inserted. E.g.

\documentclass{article}

\begin{document}

\begin{lilypond}
\relative{
    \time 4/4 \tempo 4=60
    c'4 d e f g a b c
} 
\end{lilypond}

\end{document}

compiled using lilypond-book gives a tex file like this

\documentclass{article}

\usepackage{graphics}
\begin{document}

{%
\parindent 0pt
\noindent
\ifx\preLilyPondExample \undefined
\else
  \expandafter\preLilyPondExample
\fi
\def\lilypondbook{}%
\input{0c/lily-dd5e2542-systems.tex}%
\ifx\postLilyPondExample \undefined
\else
  \expandafter\postLilyPondExample
\fi
}

\end{document}

(the included file includes the eps graphics).

If you wish to use a different workflow you can use a different approach (as long as you are using LuaTeX). There is the package lyluatex which allows you to do

\documentclass{article}
\usepackage{lyluatex}

\begin{document}

\begin{lilypond}
\relative{
    \time 4/4 \tempo 4=60
    c'4 d e f g a b c
} 
\end{lilypond}

\end{document}

directly in LuaLaTeX.

Answer 2

Mixing lilypond and LaTeX is a bit sturdy. I have a solution here and that's, what I'm basically doing for years now: Lilypond with LaTeX