\version "2.19.15"
\language "english"
global = {
  \key g \major
  \numericTimeSignature
  \time 4/4
  \tempo "Grave" 4=100
}

right = { \global
  <b e'>4. <a'c''>8 <g'b'>4. <fs'a'>8 |%m01
  <<{ds''4. cs''16 b'16 s4. g''8}\\{fs'4. e'8 <b'g''>4. 8}>> |\break%m02
  <<{\repeat unfold 2{a'8 c'' b' c''}}\\{a'1}>> |%m65
  <<{fs'8 b' a' b' ds'8 b' a' b'}\\{fs'2. ds'4}>> |\break %m66
  <<{\stemDown a''4 e''4 a''2~\stemUp 8 b''8 g'' a'' fs''8 b'' a'' b''}\\{a'4 e''8 d'' c''2 b'1}>> |%m89-90
}

left = { \global
  <<{g4. a8 b4. 8}\\{e2 r2}>> %m01
  <b,b>4. <g b>8 <fs b>4. <e e'>8 |%m02       
  <<{r4 d'4 2}\\{fs,2 fs}>> |%m65
  <<{b1}\\{ds2 b,}>> |%m66
  <<{c'2 e'8 \change Staff = up b'8 a' g'}\\{c'4. b8 a8 g fs e}>> |%m89
  <<{fs'4 e'2 ds'4}\\{ds4 e b b,}>> |%m90
}


\score{ 
<<
    \new Staff = "right" \with {
      midiInstrument = "acoustic grand"
    } \right
    \new Staff = "left" \with {
      midiInstrument = "acoustic grand"
    } { \clef bass \left }
  >>
  \layout {}
}