\version "2.13.20"

global = {
  \key g \major
  \time 3/4
  s2.*2
  \break
  \time 2/4
  s2*2
  \bar "|."
}

SoloNotes = {
  \clef "treble"
  \relative g' {
    g4 g g |
    b4 b b |
  }
  R2*2 |
}
SoloLyrics = \lyricmode {
  One two three |
  four five six |
}

SopranoNotes = {
  \clef "treble"
  R2.*2 |
  \relative c'' {
    c4 c |
    g4 g |
  }
}
SopranoLyrics = \lyricmode {
  la la |
  la la |
}

BassNotes = {
  \clef "bass"
  R2.*2 |
  \relative c {
    c4 e |
    d4 d |
  }
}
BassLyrics = \lyricmode {
  dum dum |
  dum dum |
}

\score {
  <<
    \new Voice = "SoloVoice" << \global \SoloNotes >>
    \new Lyrics \lyricsto "SoloVoice" \SoloLyrics

    \new ChoirStaff <<
      \new Voice = "SopranoVoice" << \global \SopranoNotes >>
      \new Lyrics \lyricsto "SopranoVoice" \SopranoLyrics

      \new Voice = "BassVoice" << \global \BassNotes >>
      \new Lyrics \lyricsto "BassVoice" \BassLyrics
    >>
  >>
  \layout {
    ragged-right = ##t
    \context {
      \RemoveEmptyStaffContext
      \override VerticalAxisGroup #'remove-first = ##t
    }
  }
}