I want to make simple rhythm notes of Cajon, this is what I want
I wrote the same thing in below bar 3, but missed something.
\documentclass{article}
\usepackage{musixtex}
\input{musixper} % percussion additions (percussion note heads, etc.)
\begin{document}
\begin{music}
\instrumentnumber{1}
\generalmeter{\meterfrac44}
\setclefsymbol1\drumclef
\parindent0pt\startpiece
\leftrepeat
\notes \ibu1m0\qb1f\doqb1n\qb1j\tbu1\doqb1n \en
\notes \ibu1m0\qb1f\doqb1n\qb1j\tbu1\doqb1n \en
\bar
\notes \ibbu1m0\qb1f\doqb1n\doqb1n\tbbu1\doqb1n \en
\notes \ibbu1m0\qb1j\doqb1n\doqb1n\tbbu1\doqb1n \en
\notes \ibbu1m0\qb1f\doqb1n\doqb1n\tbbu1\doqb1n \en
\notes \ibbu1m0\qb1j\doqb1n\doqb1n\tbbu1\doqb1n \en
\bar
\notes\Qqbbu fhge\Qqbbl jhgi\en
\notes\Qqbbu fhge\Qqbbl jhgi\en
\setrightrepeat\endpiece
\end{music}
\end{document}
Compiled with 3-passing
pdflatex example.tex
musixflx example
pdflatex example.tex
pdflatex example.tex
UPDATE with solution
According to the answer together with comments, the problem is about ending a beam, the doc says:
The termination of a given beam must be declared before coding the last spacing note connected to that beam.
So 16th notes is initialed by \ibbu{n}{p}{s}
should be terminated by \tbu{n}
\documentclass{article}
\usepackage{musixtex}
\input{musixper} % percussion additions (percussion note heads, etc.)
\begin{document}
\begin{music}
\instrumentnumber{1}
\generalmeter{\meterfrac44}
\setclefsymbol1\drumclef
\parindent0pt\startpiece
\leftrepeat
\notes \ibu1m0\qb1f\doqb1n\qb1j\tbu1\doqb1n \en
\notes \ibu1m0\qb1f\doqb1n\qb1j\tbu1\doqb1n \en
\bar
\notes \ibbu1m0\qb1f\doqb1n\doqb1n\tbu1\doqb1n \en
\notes \ibbu1m0\qb1j\doqb1n\doqb1n\tbu1\doqb1n \en
\notes \ibbu1m0\qb1f\doqb1n\doqb1n\tbu1\doqb1n \en
\notes \ibbu1m0\qb1j\doqb1n\doqb1n\tbu1\doqb1n \en
\bar
\notes\Qqbbu fhge\Qqbbl jhgi\en
\notes\Qqbbu fhge\Qqbbl jhgi\en
\setrightrepeat\endpiece
\end{music}
\end{document}