Re: GregorianTranscriptionStaff

[Lukas-Fabian Moser]

Am 01.08.22 um 09:05 schrieb Werner LEMBERG:
> > GregorianTranscriptionStaff currently shows a time signature.  Is
> > that desirable?
> As discussed in
>
>    https://gitlab.com/lilypond/lilypond/-/merge_requests/1515#note_1045453533
>
> I think it makes sense to have time signatures if you transcribe
> polyphonic music that uses Gregorian chant notation, like pieces from
> the Notre Dame School period (12th to 13th century).  However, this is
> no longer 'classical' Gregorian chant, so maybe the default should be
> to not show a time signature.
>
> Are there any experts who could shed more light on this topic?
>
> Maybe we should ask on the 'lilypond-user' list, too.

fwiw, I'm a bit confused about the GregorianTranscriptionStaff context - 
for example, in the typical liturgical situations where one uses a 
"modern" staff for notating Gregorian chant, one usually doesn't use 
stems. The Notre Dame examples you cited, on the other hand, are 
different matter: they use what's called "modal notation" where certain 
types of ligatures are used to encode one of six known rhythmic models. 
And at least some of the transcriptions in Apel are given with a time 
signature (of 6/8 as usual).

But the context type was added by Jürgen Reuter (e9ac8723c) who 
obviously knows his stuff, so I'm sure he had a meaningful specific 
application in mind; maybe it would be a good idea to specify the 
intended application more clearly in the documentation. CC'ing Jürgen.

Lukas