Poly rithm

[Christian]

Hi all, I can't seem to get the poly-rhytm to display properly...

flute = \relative c'' {
  \global
  \repeat volta 2 {
  g'4.^"Inzet bij couplet 4" e | fis d | e c | d b |
  }
  \time 2/4 a8 d fis e | d4. d8 | e8 d e fis |
  \time 3/4 \tuplet 3/2 { g fis e } d [c] b [g] | \time 2/4 a b c e |
g2\fermata |
}

oboe = \relative c'' {
  \global
  e4. c | d b | c a | b g |
  \time 2/4 fis8 g a b | a fis g g | e8 e a4 |
  \time 3/4 g4 g g | \time 2/4 g8 e g c | b2\fermata |
}

altoSax = \relative c'' {
  \global
  %\transposition es
  b4. g | a fis | g e | fis d |
  \time 2/4
    \set Staff.timeSignatureFraction = 6/8
    \scaleDurations 2/3
    a'4. a4 g8 | a b c d c b | a2. |
  \time 9/8 d4. e d | \time 6/8 c4 b8 a g a | g2.\fermata |
}

Where did I go wrong?