Your white space between Pmusic and Playlist is not ASCII.
I did a lot of copying of text using the clipboard, since this reduced the
number of spelling mistakes and speeded up the process of writing the script.
Maybe Zigbert put in whitespace with hard spaces(the alt key).
This is something I would never do.
When I typed out the 'Add to pmusic playlist' menu item it solved the
problem.
Fortunately the US-keyboard layout does a good job at showing
the characters that programmers use.
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