{%
 \parindent 0pt
 \noindent
 \ifx\preLilyPondExample \undefined
 \else
   \expandafter\preLilyPondExample
 \fi
 \def\lilypondbook{}%
 \input{c6/lily-5c2028f2-systems.tex}
 \ifx\postLilyPondExample \undefined
 \else
   \expandafter\postLilyPondExample
 \fi
 }