\version "2.18.2"
\language "english"

staffUp = \change Staff = "up"
staffDown = \change Staff = "down"

highVoice = \relative c''' {
  | \acciaccatura { d8 } <f, a c>8 [ \staffDown <f, a c> \staffUp
    \acciaccatura { c''8 } <f, af b> \staffDown <f, af df> ] \staffUp
  | \acciaccatura { d''8 } <f, a c>8 \staffDown <f, a c> \staffUp
    <df' f af> [ \acciaccatura { d'8 } <f, a c> ]
  | \acciaccatura { d'8 } <f, a c>8 [ \staffDown <f, a c> \staffUp
    \acciaccatura { c''8 } <f, af b> \staffDown <f, af df> ] \staffUp
  | \acciaccatura { d''8 } <f, a c>8 [ \staffDown <f, a c> \staffUp
    <df' f af> \staffDown <af b> ] \staffUp
}

lowVoice = \relative c'' {
  | \acciaccatura { s8 } s2 
  | s4 <af b>8 r
  | s2 * 2
}

global = {
  \key f \major
  \time 2/4
  \accidentalStyle piano
}

\score {
  \new PianoStaff <<
    \new Staff = "up" {
      \global
      \highVoice 
    }
    \new Staff = "down" {
      \global
      \lowVoice 
    }
  >>
  \layout {
  }
  \midi {
    \tempo 4 = 160
  }
}