/usr/share/doc/pmw/examples/ex51 is in pmw-doc 1:4.27-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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nocheck
notime
[stave 1 treble 1]
[omitempty] ggg |? [skip 3] |? aaa |
[endstave]
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