\documentclass{cfart}
\input texmuse.tex
\begin{document}
\makeatletter
\newinstrument{righthand}
\newinstrument[\bassclef]{lefthand}
\parindent0pt
\FontSplit140
\title{Invention in c}
\author{J. S. Bach}
\maketitle
\thispagestyle{empty}
\begin{figure}[b]
\flushright\small Typeset by \TeXmuse
\end{figure}
\begin{texmuse}
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\music{lefthand,righthand}

\end{document}