\version "2.25.1"

\header {
  title = "Dreistimmige Messe in G"
  subtitle = "Kyrie"
  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 << \Maa \Ba >>
      \lyricsto Vaa \Laa

      \transpose c \pitch_b \new Staff \Mba
      \lyricsto Vba \Lba
      
      \transpose c \pitch_c \new Staff \Mca
      \lyricsto Vca \Lca
    >>
    \transpose c \pitch_o \new GrandStaff <<
      \new Staff { \Sa << \Vca \\ \Vba >> }
      \new Staff { \clef "bass" \Sa \Vaa }
    >>
  >>
  \layout {
    \context {
      \ChoirStaff
      fontSize = #-4
      \override StaffSymbol.staff-space = #(magstep -4)
    }
  }
}
\score {
  <<
    \transpose c \pitch_a \new Staff << \Maa \Ba >>
    \transpose c \pitch_b \new Staff \Mba
    \transpose c \pitch_c \new Staff \Mca
    \transpose c \pitch_o \new Staff { \Sa << \Vca \\ \Vba >> }
    \transpose c \pitch_o \new Staff { \Sa \Vaa }
  >>
  \midi {}
}