\paper { #(set-paper-size "a6") }

\new Staff <<
  \new Voice = vvv {
    \relative {
      c' d e f~
      f g a b
    }
  }
  \new Lyrics \lyricmode {
    The f has tie __ _ ov -- er barline
  }
>>

\new Staff <<
  \new Voice = vvv {
    \relative {
      c' d e f~
      f g a b
    }
  }
  \new Lyrics \lyricmode {
    \set associatedVoice = vvv
    The f has tie __ _ ov -- er barline
  }
>>

\new Staff <<
  \new Voice = vvv {
    \relative {
      c' d e f~
      f g a b
    }
  }
  \new Lyrics \lyricmode {
    The f has tie2 __ ov4 -- er barline
  }
>>

\new Staff <<
  \new Voice = vvv {
    \relative {
      c' d e f~
      f g a b
    }
  }
  \new Lyrics \lyricmode {
    \set associatedVoice = vvv
    The f has tie2 __ ov4 -- er barline
  }
>>