\version "2.25.1"

\header {
  title = "Dreistimmige Messe in G"
  subtitle = "Agnus Dei"
  composer = "Robert Führer"
}
#(set-global-staff-size 20)

\include "score_glb.ily"
\include "music.ily"

\score {
  <<
    \new ChoirStaff <<
      \score_pre
      \transpose c \pitch_a \new Staff << \Maf \Bf >>
      \lyricsto Vaf \Laf

      \transpose c \pitch_b \new Staff \Mbf
      \lyricsto Vbf \Lbf
      
      \transpose c \pitch_c \new Staff \Mcf
      \lyricsto Vcf \Lcf
    >>
    \transpose c \pitch_o \new GrandStaff <<
      \new Staff { \Sf << \Ocf \\ \Obf >> }
      \new Staff { \clef "bass" \Sf \Oaf }
    >>
  >>
  \layout {
    \context {
      \ChoirStaff
      fontSize = #-4
      \override StaffSymbol.staff-space = #(magstep -4)
    }
  }
}
\score {
  <<
    \transpose c \pitch_a \new Staff \Maf
    \transpose c \pitch_b \new Staff \Mbf
    \transpose c \pitch_c \new Staff \Mcf
    \transpose c \pitch_o \new Staff { \Sf << \Ocf \\ \Obf >> }
    \transpose c \pitch_o \new Staff { \Sf \Oaf }
  >>
  \midi {
    \midi_tempoF
  }
}