\input musixtex
\instrumentnumber2
\setclef1{\bass}
\setstaffs12
\startpiece\addspace\afterruleskip%
\Notes\qa J|\qa l&\qa n\en
\Notes\qa J|\qa l\en
\Notes\qa J&\qa n\en
\Notes\qa J|\qa l&\qa n&\qa q\en
\zstoppiece\end
