Re: mensural notation improvements (issue3797046)

[Benkő Pál]

>> please advise me about regression tests: can I modify ligatures within
>> mensural-ligatures.ly?  if not, can I add new ones to the same file?
>
> Ancient music has been abandoned by developers for a number of years.
> IMO, you may do whatever you think makes the most sense as you try to
> bring ancient music back into the mainstream of LilyPond development.

I thought there might be a general policy about editing files in the
regression suite.

p