\version "2.11.62"
\relative c'' {
  \time 11/16
  \set Timing.beatGrouping = #'(4 3 4)
  c16 b a g
  g f a
  g8 f16 e

  \set subdivideBeams = ##t
  \set beatLength = #(ly:make-moment 1 8)
  c'16[ b a g]
  \unset subdivideBeams
  \unset beatLength
  g f a
  g8 f16 e
}