Thanks to all for your quick help!
I adjusted the voices so that the E naturals I
intend to tie are in the same lilypond voice. The tie
now renders and correct notation results _however_ the
problem I have now, is that direction of the stems that
lilypond has chosen for each voice is _not_ the direction
I wish.
How does one override lilypond's stem directions for a
particular note or voice.
Also, though tie renders in the attached image, but I prefer
the curve of the tie _below_ the E naturals, not _above_ as
in the attached image. Is there a way to force in which direction
the "tie is written"?
Thanks again!
\version "2.12.3"
\include "
english.ly"
\score {
<<
\new Staff = "guitar"
{
\clef "treble_8"
\time 4/4
% guitar m01
<<
{ s2. g'8. [e,16~] }
\\
{ r2. f8 [b8] }
>>
% guitar m02
<<
{ e,1}
\\
{ <fs f' a'>4. <g' bf'>8 <g' b'>8 <bf a' cs''>4. }
\\
{ s2 g'16 [gs16] s4 }
>>
}
>>
}