voice context on the fly and lyrics

[Orm Finnendahl]

Hi,

 in the example below, I'm trying to create a Voice context on the fly
and add lyrics to it. It doesn't seem to do what I would expect.

The attached png shows my output (lilypond 2.13.43 on Linux).

My questions:

1. Why are the b and a eigth notes rendered simultaneously with the c
   on the downbeat of bar 2 and not succesively on the last beat of
   bar 1?

2. Why are the lyrics printed below the PianoStaff despite the
   "\accepts lyrics"?

I suspect the latter has to do with the nested << >> brackets, as
lyrics get printed between the staff lines if I do it without the
nested brackets. In the piece I'm writing it would make things much
clearer and easier, if I could create new contexts at different parts
of the piece on the fly and attach individual lyrics to each of them.

--
Orm


\version "2.13.43"

\score {
  \new PianoStaff \with { \accepts Lyrics }
  <<
    \new Staff = upper {
      \clef G 
      \relative c' 
      { c8 d 
        <<
          \new Voice = "one" { e8 [ f g a ] }
          \addlyrics { ba da di do }
        >>
        b8 a g f e d c }
    }
    \new Staff = lower {
      \clef bass
      \relative c {
        c4 d e f g f e d
      }
    }
  >>

\layout{}
}

lyricstest.jpg
Description: JPEG image