\version "2.8.6"
TimeKey = { \time 2/4 \key g \minor }
VoiceOne = \relative c'' {
  g4^\( g8. g16 | a4 a8. a16 | bes4 bes8. bes16 | c8. c16 c4\) |
}
VoiceTwo = \relative c {
  \set tupletSpannerDuration = #(ly:make-moment 1 4)
  \times 2/3 {
	\repeat unfold 2 { r8\sustainDown <g bes d> <g bes d>\sustainUp } |
	\repeat unfold 2 { r8\sustainDown <fis g d> <fis g d>\sustainUp } |
	\repeat unfold 2 { r8\sustainDown <g bes d> <g bes d>\sustainUp } |
	\repeat unfold 2 { r8\sustainDown <g c ees> <g c ees>\sustainUp } |
  }
}
VoiceThree = \relative c {
  g4 g | d d | g g | ees ees |
}
Music = \new PianoStaff <<
  \context Staff = up {
	#(set-accidental-style 'modern)
	\clef treble \TimeKey
	\VoiceOne
	\bar "|."
  }
  \context Staff = down <<
	#(set-accidental-style 'modern)
	\clef bass \TimeKey
	\context Voice = two { \voiceOne \VoiceTwo }
	\context Voice = three { \voiceTwo \VoiceThree }
  >>
>>

\score {
  \Music
  \header {
	piece = "Badly positionned 16th in upper voice"
  }
  \layout {}
}