\documentclass{article}
\begin{document}
Including a LilyPond file with options (quote and noindent):
-
\lilypondfile[quote,noindent]{include2.ly}
-
-From a subdirectory:
-
-\lilypondfile[quote,noindent]{include/example.ly}
-
-Within a lilypond block:
-
-\begin{lilypond}[quote,noindent]
- \include "include/myvar.ily"
- \relative c'' { \myVar }
-\end{lilypond}
\end{document}