\score {
  \header {
    title = "Wie schön blüht uns der Maien"
  }
  \new ChoirStaff <<
    \new Staff
    <<
      \set Score.skipBars = ##t
      ifdef(`Pausen-statt-Fermaten',`\new Voice = frauen  { \global \oneVoice \pausen }')
      \new Voice = sopran  { \global \voiceOne \sopranMelodie }
      \new Voice = alt     { \global \voiceTwo \altMelodie }
    >>
    ifdef(`STR_1',\new Lyrics \lyricsto sopran { \textI })
    ifdef(`STR_2',\new Lyrics \lyricsto sopran { \textII })
    ifdef(`STR_3',\new Lyrics \lyricsto sopran { \textIII })
    \new Staff <<
      ifdef(`Pausen-statt-Fermaten',`\new Voice = maenner { \global \clef "bass" \oneVoice \pausen }')
      \new Voice = tenor   { \global \clef "bass" \voiceOne \tenorMelodie }
      \new Voice = bass    { \global \clef "bass" \voiceTwo \bassMelodie }
    >>
  >>
  \layout {
    indent = #0
  }
}