Re: regression tests for white mensural ligature enhancements (issue3989049)

[Benkő Pál]

hi James,

> The CG asks that for every new line of music you put the note length
> of the first note of every measure that starts a new line,
> even though it is not technically needed.
>
> That's all.
>
> So for example
>
> \override NoteHead #'style = #'blackpetrucci
>  a'8*4/3 a'
>  \override NoteHead #'style = #'petrucci
>  a'\longa
>
> should be written
>
> \override NoteHead #'style = #'blackpetrucci
>  a'8*4/3 a' % <------ note is only numbered on first instance of same line
>  \override NoteHead #'style = #'petrucci
>  a'8\longa  % <------ note is numbered on first instance of next new line
>
> Does this help?

\longa is a duration; a'8\longa should be syntax error.
ancient music, in particular ligatures, work with durations
longer than 1 - \breve, \longa and \maxima.

p