Wow, what an adorable solution!
Merci beaucoup, Jean! You have a gift!
F.
El mar, 9 may 2023 a las 11:35, Jean Abou Samra (<j...@abou-samra.fr>)
escribió:
> Le mardi 09 mai 2023 à 11:10 -0300, Federico Sarudiansky a écrit :
>
> Hi everyone! Please consider the following problem: a work for a soloist
> and accompaniment in which there is an «alternative» part. For instance, a
> work for flute and guitar which the composer allows to be played on violin.
> The solo parts are almost identical, and differ only in isolated places.
> Following the example, I'd like to generate a flute part, a violin part and
> a score in which the flute is printed in full and the violin part is only
> shown in the form of ossias. This MWE shows the idea:
>
> Is there a way of automatically generate \musicoss from \music? For if it
> is, everything can be made from only one musical source. Hope someone has
> an idea. I looked for it in LSR and in the lilypond-user archives to no
> avail. But perhaps the answer is obvious.
>
> Try like this?
>
> \version "2.24.1"
>
> \tagGroup fl,vl,vl-ossia
>
> fluteViolinDifferent =
> #(define-music-function (flute violin) (ly:music? ly:music?)
> (make-relative (flute violin) #{ #flute #violin #}
> #{
> <<
> \tag fl $flute
> \tag vl $violin
> \tag vl-ossia
> \new Staff \with {
> alignAboveContext = "main"
> \magnifyStaff #2/3
> \remove Clef_engraver
> \remove Time_signature_engraver
> }
> $violin
> >>
> #}))
>
> music = \relative {
> c'4 d e f |
> \fluteViolinDifferent
> { g a b c }
> { g f d c }
> g' g g g |
> }
>
> \markup{flute part}
> \score { \new Staff \keepWithTag fl \music }
> \markup{violin part}
> \score { \new Staff \keepWithTag vl \music }
> \markup{score}
> \score { \new Staff = main \keepWithTag fl,vl-ossia \music }
>
> Basically, the idea is to use a function which emits the violin music
> twice, once in the main context for the separate violin part, and once
> wrapped in \new Staff \with { ... } for the ossia.
>
