Incipits

[Nicolas Sceaux]

Le 3 févr. 08 à 02:04, Juergen Reuter a écrit :

> However, I see a very important feature missing in this approach:
> An incipit should (at least in my view) be thought of as the  
> beginning of a piece written in notation that comes close to the  
> autograph or first publishing.  That is, the incipit actually starts  
> the music.  Then, at some point (e.g. after the clef or after the  
> first note of each voice or after the first few notes), the music is  
> reset to its start, the notation switches to modern style, and  
> printing starts again, this time from the very beginning to the very  
> end.
>
> In particular, as Laura points out, many people want to include one  
> or more notes in the incipit.  More generally, virtually any music  
> expression could appear in an incipit -- it's just printed in an old- 
> fashioned style or otherwise coming much closer to the original.
>
> Thus, the ideal behavior of an incipt engraver would be to ordinary  
> start printing the piece, using (for example) a mensural context and  
> the info from IncipitClef, IncipitSignature, and  
> IncipitTimeSignature.  Then, when the InciptEngraver has done its  
> work, the music should rewind back to the very beginning, and  
> ordinary type setting should start.
>
> A couple of weeks ago, I think I already posted the idea of having a  
> scheme function, say "\makeIncipit { <music> }", that takes all of  
> the music as argument and creates from it another music expression  
> with the incipit.  You could then say something like "\makeIncipt  
> { <music> } <music>" to create the incipit, followed by the actual  
> music.  However note, that currently it is not possible to implement  
> such a scheme function for several technical details, such as the  
> system start delimiter that would also have to be placed *after* the  
> incipit.  Maybe with some more changes at your incipit engraver,  
> this engraver can be used to actually implement the "\makeIncipit"  
> scheme function.  This is what I thought of when I used the word  
> "challenging". ;-)

Grr, I just wanted to simply print two different clefs at the
beginning of a score, and now I found myself trying to implement
full featured incipits, damnit!

I have something, based on the instrument name hack, which gives
the following result:

The score looks like:

\score {
  \new StaffGroup <<
    \new Staff <<
      \set Staff.instrumentName = \markup Toto
      \vocalIncipit { \clef "neomensural-c1" c'4 d' e' f' }
                    \lyricmode { do ré mi fa }
      \new Voice = melody {
        \clef "treble" c'4 d' e' f'

        c'1
      }
      \lyricsto melody \new Lyrics \lyricmode { do re mi fa }
    >>
    \new Staff <<
      \set Staff.instrumentName = \markup Titi
      \incipit { \clef "neomensural-c2" c'4 g c'2 }
      {
        \clef "alto" c'4 g c'2
        c'1
      }
    >>
    \new Staff <<
      \set Staff.instrumentName = \markup Tutu
      \incipit { \clef "neomensural-c3" c'4 g c'2 }
      {
        \clef "alto" c'4 g c'2
        c'1
      }
    >>
  >>
  \layout {
    indent = 5\cm
    ragged-right = ##t
    \context {
      \Staff
      \remove "Instrument_name_engraver"
      \consists "Incipit_engraver"
    }
  }
}

Is it nearer to people expectations wrt to incipits?

nicolas