On Tue, Jan 12 2021 at 10:39:40 PM +0000, Michael Hendry
<hendry.mich...@gmail.com> wrote:
Could the problem be the “>” sign in the path reported in the
error message?
C:\LilyPond220\usr\bin>convert-ly -e alice2.ly
I think it's the command line prompt symbol. In other words, he entered
that directory and launched the command in that directory as it was in
the PATH instead of calling that file. I don't know Windows, but in
Linux you would have used ./convert-ly in that directory.
Anyway, the best suggestion is adding the binary path to the system
PATH.