a little more nitpick + one question

[Tom Cato Amundsen]

In the example below, the noteheads in the first voice are ca. 1/3
notehead to far to the left compared to the noteheads in voice two.
(lilypond 1.3.152)

\score{
\context Staff=i<
  \context Voice=i\notes\transpose c''{ \stemUp <f g> f}
  \context Voice=ii\notes\transpose c''{ \stemDown <d e> <d e>}
>
}


And the question:
I have started improving the music parser and displayer in Solfege,
and use Lilypond as "The Source of True Wisdom About Music
Typesetting". In the example below,  are there a good reason why
the noteheads of voice two are one notehead to the left compared
to voice one in the first two chords, while in the third chord
the noteheads in voice two are right below voice one. Is this "common
practice" in music notation, or are this just something lilypond
happends to do?

\score{
 \context Staff=i<
  \context Voice=i\notes{ <f' g'> <f' g'> <f' g'> }
  \context Voice=ii\notes{ <b c'> <c' d'> <d' e'> }
 >
}

 
-- 

Tom Cato Amundsen <address@hidden>
GNU Solfege - free eartraining, http://www.gnu.org/software/solfege/