Of course the next step, after we all master making up PMXagrams, is
to make up puzzles consisting of either TeX files, dvi files, or
images that were created from PMX code that had the PMXagram in it.
Post just the image, dvi, or TeX file, and everyone else tries to
figure out what the PMXagram was. Here's a really simple example:
======================================
\input musixtex
\input pmx
\input musixmad
\normalmusicsize%
\nopagenumbers
\hsize=524pt
\vsize=740pt
\def\nbinstruments{1}
\setstaffs11
\setclef10
\setname1{ }
\generalsignature{-2}%
\generalmeter{\meterfrac{2}{4}}%
\parindent 0pt
\elemskip1pt\afterruleskip1.000pt\beforeruleskip0pt\relax
\stafftopmarg0pt\staffbotmarg5\Interligne\interstaff{10}\relax
\nostartrule
\readmod{junk}
\startmuflex\startpiece\addspace\afterruleskip%
\znotes\zcharnote{16}{\titles{2.0}{}{0}{}{0}{}{0}}\en%
% Bar count 1
\def\NOtes{\vnotes2.00\elemskip}%
\def\NOTes{\vnotes2.83\elemskip}%
\NOtes\cl d\roff{\cl e}\nextvoice\zq{'b}\cu{`f}\zq f\cu{'a}\en%
\NOTes\ql d\nextvoice\zq{'b}\qu{`f}\en%
\Endpiece
\vfill\eject\endmuflex
\bye
==================================
The product of an idle mind.
--Don