Re: Sending around contexts

[Kieren MacMillan]

Hi Valentin (et al.),

Oh, this is so great…!!  =)

FAIRLY MINIMAL EXAMPLE:

%%%
\version "2.20"

\layout {
  \context {
    \name "Notes"
    \type "Engraver_group"
  }
  \context {
    \Voice
    \accepts "Notes"
  }
  \context {
    \name "Container"
    \type "Engraver_group"
    \accepts "Notes"
    \accepts "Voice"
  }
  \context {
    \Staff
    \accepts "Container"
  }
  \context {
    \Dynamics
    \accepts "Container"
  }
}

toDyn =
#(define-music-function (music1 music2) (ly:music? ly:music?)
   #{
     << #music1 \new Container \new Notes { \change Container = 
"piano_dynamics" #music2 } >>
   #})

piano_upper = {
  c'4\p d' e' f'
  \toDyn g'1 s1\mp
  g'4\f f' e' d'
  c'1
}

piano_lower = {
  \clef bass
  c1
  g,1
  g,1
  c1
}

\score {
  <<
    \new PianoStaff <<
      \new Staff \piano_upper
      \new Dynamics \new Container = "piano_dynamics" s1
      \new Staff \piano_lower
    >>
  >>
  %%%  layout mod to show the centred dynamics
  \layout {
    \context {
      \PianoStaff
      \override VerticalAxisGroup.staff-staff-spacing.padding = #10
    }
  }
}
%%%

Question: Can the interface be made into a \tweak-able function, where the 
parameters are [only] the name of the target context and the music being sent 
there?

Very exciting!
Kieren.
________________________________

Kieren MacMillan, composer (he/him/his)
‣ website: www.kierenmacmillan.info
‣ email: kieren@kierenmacmillan.info