\version "2.19.16"
\paper
{
  % A4 version.
  #(set-paper-size "a4" 'landscape)
  indent = 0
  top-margin = 20\mm
  bottom-margin = 16\mm
  left-margin = 16\mm
  right-margin = 16\mm

  myStaffSize = #20
}

aux = \repeat unfold 3 { s1*2 \break }

upper = \relative c'' {
  \time 4/4
  \clef treble
  \key c \major

  <<
    {
      \voiceOne
      \stemDown
      \override TupletBracket.bracket-visibility = ##t
      c,4 c c c |
      \tupletDown
      \tuplet 7/4 {c16 bes c bes c d bes }
      \tuplet 7/4 {c16 bes c bes c d bes }
      \tuplet 7/4 {c16 bes c bes c d bes }
      \tuplet 7/4 {c16 bes c bes c d bes }
      c4 c c c |
      bes' bes bes bes |
      a a a a |
      \tuplet 7/4 {c,16 bes c bes c d bes }
      \tuplet 7/4 {c16 bes c bes c d bes }
      \tuplet 7/4 {c16 bes c bes c d bes }
      \tuplet 7/4 {c16 bes c bes c d bes }
    }
    \\
    {
      \voiceThree
      \override TupletBracket.bracket-visibility = ##t
      \tuplet 9/8 { c8[ d e f g f d b c] } |
      \tuplet 7/8 { d f g a e f c } |
      \tuplet 13/8 { d g bes a f c d a' f d e d g }
      \tuplet 3/8 { f d cis } |
      \tuplet 5/8 { cis ees d f d } |
    }
  >>
}

lower = \relative c' {
  \time 4/4

  \clef bass
  \key c \major

  \voiceOne
  c,1 |
  bes |
  a |
  g |
  a |
  bes |
}

\score {
  \new PianoStaff <<
    \new Staff = "treble" \new Voice <<
      \upper
      \aux
    >>
    \new Staff = "bass" \lower
  >>

  \layout {
    \context {
      \Score
      proportionalNotationDuration = #(ly:make-moment 1/20)
      \override SpacingSpanner.uniform-stretching = ##t
    }
  }
}