\score {
  \header {
    title = "Nun lob, mein Seel, den Herren"
    poet = "Text: Johann Gramann 1530; Str. 5 Königsberg 1549"
    meter = "Musik: 15. Jhd.; geistl. bei Hans Kugelmann 1540"
    composer = "Satz: Michael Praetorius 1610"
    arranger = "Einrichtung und Textunterlegung: Erhard Anger"
  }
  \new ChoirStaff <<
    \new Staff <<
      \set Score.skipBars = ##t
      \new Voice = sopran { \global \sopranMelodie }
    >>
    ifdef(`STR_1',\new Lyrics \lyricsto sopran { \sopranTextI })
    ifdef(`STR_4',\new Lyrics \lyricsto sopran { \sopranTextIV })
    ifdef(`STR_5',\new Lyrics \lyricsto sopran { \sopranTextV })
    \new Staff <<
      \set Score.skipBars = ##t
      \new Voice = alt    { \global \altMelodie }
    >>
    ifdef(`STR_1',\new Lyrics \lyricsto alt { \altTextI })
    ifdef(`STR_4',\new Lyrics \lyricsto alt { \altTextIV })
    ifdef(`STR_5',\new Lyrics \lyricsto alt { \altTextV })
    \new Staff <<
      \new Voice = maenner { \global \clef "bass" \maennerMelodie }
      \new CueVoice = bass    { \global \clef "bass" \bassMelodie }
    >>
    ifdef(`STR_1',\new Lyrics \lyricsto maenner { \maennerTextI })
    ifdef(`STR_4',\new Lyrics \lyricsto maenner { \maennerTextIV })
    ifdef(`STR_5',\new Lyrics \lyricsto maenner { \maennerTextV })
  >>
  \layout {
    indent = #0
  }
}