\makeatletter
%\font\jcfn cmbx10
\font\jcfn cmssbx10
\def\sup#1{\raise4pt\hbox{#1}}
%\def\jc#1#2{\zcharnote{#1}{\jcfn#2}}
\def\jc#1#2{\zcharnote{0}{\raise#1\internote\hbox{\jcfn#2}}}
\def\jsh{\raise 3.5pt\hbox{\musixchar92}}
\def\jfl{\raise 2pt\hbox{\musixchar90}}
\def\jna{\raise 2pt\hbox{\musixchar94}}
\def\majs{\sup{maj7}}
\def\jcheight{-10}%
\def\jcn#1{\jc{\jcheight}{#1}}%
%\def\jcn#1{\jc{-10}{#1}}%
\def\jcf#1{\loff{\jcn{#1}}}%
%\def\rtu{\off{-\afterruleskip}\ccharnote0\duevolte\off{\afterruleskip}}
\def\rtux{\off{-\afterruleskip}\ccharnote0\duevolte%
  \ccharnote9{\meterfont\rtutxt}\off{\afterruleskip}}%
\def\rtu{\def\rtutxt{2}\rtux}\def\rtun{\def\rtutxt{\empty}\rtux}%
\def\mbrest#1#2#3{%
\CenterBar{%
  \def\vertpart{\hbox{\vrule width.6pt height1.5\internote depth1.5\internote}}%
     \raise\f@ur\internote\hbox{%
     \vertpart\hbox{%
     \vrule width0.7\y@ii height.5\internote depth.5\internote%
     \kern-0.35\y@ii\raise5\internote\lrlap{\meterfont #1}\kern0.35\y@ii}%
     \vertpart}%
}{#2}{#3}%
}%
%%
%\def\mbrest#1#2#3{%
%\def\vertpart{\hbox{\vrule width.6pt height1.5\internote depth1.5\internote}}%
%\CenterBar{%
%\raise\f@ur\internote\hbox{%
%\vertpart\hbox{%
%\vrule width0.7\y@ii height.5\internote depth.5\internote%
%\kern-0.35\y@ii\raise5\internote\lrlap{\meterfont #1}\kern0.35\y@ii%   
%}%
%\vertpart%
%}%
%}{#2}{#3}%
%}%
\makeatother
