\version "2.13.11"
\pointAndClickOff

% QUESTION: Is there any proper way to start a new Lyrics context, inside a
%           Voice??? The test cases below always put the Lyrics context below the 
%           whole system rather than above/below the current staff...
\score {<<
    \new Staff << 
      \new Voice = "Vc1" { 
	c'4 d'4 
	\new Lyrics \lyricmode { D4 E4 F4 } 
	e'2 
      } 
      \new Lyrics \lyricsto "Vc1" { A B C } 
    >>
    \new Staff << 
      \new Voice = "Vc2" { 
	c''2 d'8 
	<< {c'4. d'4 e'4} 
	   \addlyrics { D E F } 
	>> 
	e'2 }
      \new Lyrics \lyricsto "Vc2" { A B C D E F G H } 
    >>
    \new Staff << 
      \new Voice ="Vc" { c'4 d'4 e'2 f'4 e' d'} 
    >>
    \new Staff << 
      \new Voice = "Vc3" {
	c'8 c' c' c' 
	<< {c' c' c' c' c' c' c' c' c' c' } 
	   \new Lyrics \lyricsto "Vc" { x y z zz } 
	>> 
	d' d' d' d' }
      \new Lyrics \lyricsto "Vc2" { A B C D E F G H } 
    >>
    \new Lyrics \lyricsto "Vc" { D E F }
>>}


\score {<<
    \new Staff << \new Voice ="Vc" { c'4 d'4 e'2 f'4 e' d'} >>
    \new Staff << \new Voice = "Vc3" { c'8 c' << {c' c' c' c' c' c' c' c' c' c' c' c' c' c' } \new Lyrics \lyricsto "Vc"  { x y z zz } >> d' d' d' d' d' d' } >>
    \new Lyrics \lyricsto "Vc" { D E F G H I J K }
>>}