Re: (original excerpt for demonstration)

[Alex Shanin]

> I'm not top posting.

% The problem I've mentioned can easily be seen here.
% Build 2.10.33 additionally produces issue 279 stuff.
\version "2.10.0"
\new PianoStaff <<
  \new Staff = RH {
    \clef treble
    \key des \major
    \time 3/4
  }
  \new Staff = LH {
    \clef bass
    \key des \major
    \time 3/4
  }
  \context Staff = RH \relative {
    \voiceOne
    \change Staff = LH
    <aes, ces f>8
    \times 8/14 {
      f'64 ( [ aes ces
      \change Staff = RH
      d f aes ces d f
      aes ces d f aes ]
    }
    ces8 )
    \oneVoice
    d,,,-> [ ces-> bes-> ]
  }
  \context Staff = LH \relative {
    \voiceTwo
    <d,,, d'>8
    \times 8/14 {
      aes''64 ( [ ces d f aes ces
      \change Staff = RH
      d f aes ces d f aes ces ]
    }
    d8 )
    \change Staff = LH
    \oneVoice
    r r4
  }
>>