{
  \time 6/8
  \bar ".|:"
  \repeat volta 2 {
    \repeat unfold 24 a'8 \break
    \repeat unfold 18 a'8
    a'8 a'8 a'8
  }
  \alternative {
    {
      a'4.
    }
    {
      a'4 \bar "" \break
    }
  }
  a'8
  \repeat unfold 30 a'8
}

{
  \time 6/8
  \bar ".|:"
  \repeat volta 2 {
    \repeat unfold 24 a'8 \break
    \repeat unfold 18 a'8
    a'8 a'8 a'8
  }
  \alternative {
    {
      a'4.
    }
    {
      a'4 \bar "" \break
    }
  }
  \repeat volta 2 {
    \bar ".|:"
    a'8
    \repeat unfold 24 a'8 \break
    \repeat unfold 18 a'8
    a'8 a'8 a'8
  }
  \alternative {
    {
      a'4
    } {
      a'4.
    }
  }
  \bar "|."
}