How to split stem?

[Peter Terpstra]

Dear people,
Found one example on the internet and reworked to get it fixed for my
situation but not ready yet.

\version "2.18.2"

fixA = {
  \once \override Stem.length = #18
}

fixB = {
  \once \override NoteHead.X-offset = #1.3
  \once \override Stem.length = #7.5
  \once \override Stem.rotation = #'(30 0 0)
  \once \override Stem.extra-offset = #'(-0.4 . -0.2)
  \once \override Flag.style = #'no-flag
  %\once \override Accidental.extra-offset = #'(4 . -.1)
}

\relative c' {\stemUp 
  \time 3/4 <e bes' g'>16-> [q-> 
  << { \fixA <d b'! g'> } \\ { \voiceThree \fixB bes' } >>
  <d, b' e g>]
}

How do i get the beam joined?

Thank you kindly in advance!


Peter