Extrange musixlyr symbols when using musixjt in Musixtex

Question

Extrange musixlyr symbols appears when using musixjt in Musixtex, it seems that musixlyr generates this issue, how to solve it?. The basic code is as follow:

\documentclass{report}
\usepackage[bold=1]{xfakebold}
\newcommand{\barraSlash}{\setBold/\unsetBold}

\usepackage{musixtex}
\input{musixlyr}    


\begin{document}

\begin{music}
    \resetlyrics
    \font\A=phvb8t at 10pt% added for letter type.
    \setlyrics{EscalaDoM}{I II III IV V VI VII I VII VI V IV III II I}% added for hand indication
    \setsongraise1{-3mm}
    \setclef1\treble % Clave de Sol para el Instrumento 1
    \generalmeter{\meterfrac{4}4}
    \nobarnumbers % Omite la numeración en los compases
    \nostartrule % Inicia sin barra vertical
    \parindent0mm
    \startpiece 
    \A\assignlyrics1{EscalaDoM}% added to place handindication
    \NOtes\islurd0c\hu{cd}\en\bar
    \NOtes\hu{e}\tslur0f\hu{f}\en\bar
    \NOtes\isluru0m\hu{gh}\en\bar
    \NOtes\hl{i}\tslur0j\hl{j}\en\bar
    \NOtes\isluru0i\hl{i}\hu{h}\en\bar
    \NOtes\hu{g}\midslur{7}\tslur0l\hu{f}\en\bar
    \NOtes\islurd0e\hu{ed}\en\bar
    \NOTes\tslur0c\wh{c}\en
    \setdoubleBAR
    \nolyr
    \lyricsoff
    \endpiece
\end{music}

\begin{music}
    \input musixjt
    \begin{center}
    \Bigtype Les Sabots\\[1ex]
    \end{center}
    \font\A=phvb8t at 8pt% added for letter type.
    \instrumentnumber{1}
    \nobarnumbers
    \setclef1\treble
    \generalmeter{\meterfrac{3}4}
    \parindent0mm
    \nostartrule
    \def\writebarno{\A\the\barno}
    \scale{1.0}
    \startbarno=1
    \startpiece 
    %\resetlyrics
    %\nolyr
    %\lyricsoff
    %1er compás - 1ra línea
    \znotes\zchar{13}{\metron{\qu}{\;\,80}}\en
    \notes\zcharnote{g}{\hspace*{-2.05cm} \huge{\textcircled{\A\bfseries\large 47}}}\ql {jkl}\en\bar
    %2do compás:
    \notes\ql {jkl}\loffset{3.3}{\zchar{10}{\hspace*{0.14cm} \barraSlash\barraSlash}}\en\bar
    %3er compás
    \notes\ql {m}\hl n\qsk\en\bar
    %4to compás
    \notes\ql {l}\hl n\qsk\loffset{3.3}{\zchar{0}{\hspace*{0.14cm} \cbreath}}\en
    \znotes\lcn{16}{\rm Folclore Franc\^es}\en
    \alaligne
    %1er compás - 2da línea
    \notes\bhsk\isluru0n\ibl1n{-1}\qb1{non}\tslur0m\tqb1m\ql{l}\en\bar
    %2do compás:
    \notes\isluru0n\ibl1n{-1}\qb1{non}\tslur0m\tqb1m\ql{j}\loffset{3.3}{\zchar{0}{\hspace*{0.25cm} \cbreath}}\en\bar
    %3er compás
    \notes\ql {k}\hl j\qsk\en\bar
    %4to compás
    \notes\qu g\hl j\qsk\en
    \setdoubleBAR
    \endpiece
\end{music}


\end{document}

The current output is as follow:

Answer 1

The critical point is not really a bug, but the definition of \metron:

\def\metron#1#2{{\lyricsoff\stemlength\f@ur\noteskip\t@n\p@ #1 1\ = #2\lyricson}}

which ends (sinds version 1.19, see musixtex.tex line 4853) with \lyricson and wants to continue the lyrics of the first music. The error does not occur when I delete the first music. With \lyricsoff after \zcharnote q{\metron{\qu}{80}} the problem seems to be solved.

Answer 2

Solved!!! for some reason the metron command cause a conflict with musixlyr (possible a bug), so I replace the command with manual equivalence. The code is as follow:

\documentclass{report}

\usepackage[bold=1]{xfakebold}
\newcommand{\barraSlash}{\setBold/\unsetBold}

\usepackage{musixtex}
\input{musixlyr}    

\usepackage{lilyglyphs}

\begin{document}

\begin{music}
    \resetlyrics
    \font\A=phvb8t at 10pt% added for letter type.
    \setlyrics{EscalaDoM}{I II III IV V VI VII I VII VI V IV III II I}% added for hand indication
    \setsongraise1{-3mm}
    \setclef1\treble % Clave de Sol para el Instrumento 1
    \generalmeter{\meterfrac{4}4}
    \nobarnumbers % Omite la numeración en los compases
    \nostartrule % Inicia sin barra vertical
    \parindent0mm
    \startpiece 
    \A\assignlyrics1{EscalaDoM}% added to place handindication
    \NOtes\islurd0c\hu{cd}\en\bar
    \NOtes\hu{e}\tslur0f\hu{f}\en\bar
    \NOtes\isluru0m\hu{gh}\en\bar
    \NOtes\hl{i}\tslur0j\hl{j}\en\bar
    \NOtes\isluru0i\hl{i}\hu{h}\en\bar
    \NOtes\hu{g}\midslur{7}\tslur0l\hu{f}\en\bar
    \NOtes\islurd0e\hu{ed}\en\bar
    \NOTes\tslur0c\wh{c}\en
    \setdoubleBAR
    \nolyr
    \lyricsoff
    \endpiece
\end{music}



\begin{music}
    \input musixjt
    \begin{center}
    \Bigtype Les Sabots\\[1ex]
    \end{center}
    \font\A=phvb8t at 8pt% added for letter type.
    \instrumentnumber{1}
    \nobarnumbers
    \setclef1\treble
    \generalmeter{\meterfrac{3}4}
    \parindent0mm
    \nostartrule
    \def\writebarno{\A\the\barno}
    \scale{1.0}
    \startbarno=1
    \startpiece 
    %\resetlyrics
    %\nolyr
    %\lyricsoff
    %1er compás - 1ra línea
    %\znotes\zchar{13}{\metron{\qu}{\;\,80}}\en
    \znotes\zcharnote{r}{\hspace*{-0.9cm} \quarterNote\;=\;80}\en
    \notes\zcharnote{g}{\hspace*{-2.05cm} \huge{\textcircled{\A\bfseries\large 47}}}\ql {jkl}\en\bar
    %2do compás:
    \notes\ql {jkl}\loffset{3.3}{\zchar{10}{\hspace*{0.14cm} \barraSlash\barraSlash}}\en\bar
    %3er compás
    \notes\ql {m}\hl n\qsk\en\bar
    %4to compás
    \notes\ql {l}\hl n\qsk\loffset{3.3}{\zchar{0}{\hspace*{0.14cm} \cbreath}}\en
    \znotes\lcn{16}{\rm Folclore Franc\^es}\en
    \alaligne
    %1er compás - 2da línea
    \notes\bhsk\isluru0n\ibl1n{-1}\qb1{non}\tslur0m\tqb1m\ql{l}\en\bar
    %2do compás:
    \notes\isluru0n\ibl1n{-1}\qb1{non}\tslur0m\tqb1m\ql{j}\loffset{3.3}{\zchar{0}{\hspace*{0.25cm} \cbreath}}\en\bar
    %3er compás
    \notes\ql {k}\hl j\qsk\en\bar
    %4to compás
    \notes\qu g\hl j\qsk\en
    \setdoubleBAR
    \endpiece
\end{music}


\end{document}

The output is as follow: