Hi all,
Thanks for your many and informative responses. M.Tarenskeen correctly identified a typo in my PATH command ("C;" instead of "C:"). I corrected that, but the problem still persists. Here's my latest info from the Command Prompt:
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C:\Users\Jerry\Documents\RPC\Music\FILE>echo %PATH%
C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\LilyPond\usr\bin;C:\Users\Jerry\AppData\Local\Microsoft\WindowsApps;
C:\Users\Jerry\Documents\RPC\Music\FILE>convert-ly *.ly
'convert-ly' is not recognized as an internal or external command,
operable program or batch file.
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Note: I tried both convert-ly and convert-ly.py, and neither one works for me.
At some iteration in the past, the PATH command was "[pre-set paths];C:\Program Files (x86)\LilyPond\usr\bin;"
Is it necessary to have the [pre-set paths] and the quotation marks?
Jerry