\documentclass{ppex}

\documentclass{ppex}
\nonstopmode
\renewcommand \encodingdefault {OT1}\fontencoding \encodingdefault \selectfont
\usepackage {musixtex}
\pagestyle{empty}

\begin{document}
\ResetPreambleCommands
\ReadyForTheFray
\usepackage {musixtex}
\begin{music}
\startextract
\NOtes\qu c\enotes \Notes\cu d\cu e\enotes
\notes\ccu f\ccu g\ccu h\ccl i\enotes \bar
\notes\cca j\cca i\cca h\cca g\enotes
\Notes\ca f\ca d\enotes \NOtes\qa c\enotes
\endextract
\end{music}
\end{document}