\version "2.16.1"

global = {
  \key c \major
  \time 6/8
  \tempo 4=100
}

rightOne = \relative c'' {
  \global
  c2. |
   \time 3/8 bes16as es as bes c |
  \time 6/8 \acciaccatura  { bes16[ c16] } bes4.~ bes |
  g8 bes es g bes es |
}
rightTwo = \relative c'' {
  \global
  a2. |
     \time 3/8 f8 s f |
  \time 6/8  f4 f g |
  g4. r |
}

\score {
  \new PianoStaff \with {
  } <<
    \new Staff = "right" \with {
      midiInstrument = "acoustic grand"
    }
    << {
      \mergeDifferentlyHeadedOn
      \mergeDifferentlyDottedOn
      \rightOne
       } \\ \rightTwo >>
  >>
  \layout { }
  \midi { }
}