Polyphony and multiple voice contexts

[Jeff Shuman]

I've only been working with Lilypond for a couple months, but I haven't been
able to figure this out by the manual. I'm using version 2.6.4-5 for 
Windows.

I use Lilypond for engraving congregational hymns. Almost all the songs
are in
4-parts, and have the 3 verses followed by a single chorus. All the
lyrics should appear between the staves. I want the flags on the staff
to face opposite
directions (soprano and tenor up, alto and bass down). I've seen the
SATB score
example, but I also want to separate the VERSE music and lyrics from
the CHORUS
music and lyrics.

The following solution almost works, but no lyrics appear. (full .ly 
source is available at 
http://36thstchurchofchrist.com/documents/bindhands.ly ) Can someone 
please point
out the error(s)? 


\score {
       \context ChoirStaff <<
           \context Staff = women {
           \context Voice = verses <<
              
{ << \global \globaltwo \sopMusic >> } \\
               { << \globaltwo \altoMusic >> }
           >>
           \context Voice = chorusW <<
              
{ << \globaltwo \sopChorusMusic >> } \\
              
{ << \globaltwo \altoChorusMusic >> }
           >>
       }

          \context Lyrics = lineone { s1 }
          \context Lyrics = linetwo { s1 }
          \context Lyrics = linethree { s1 }

           \context Staff = men {
           \clef bass
           <<
              
{ << \global \globaltwo \tenorMusic >> } \\
               { << \globaltwo \bassMusic >> }
           >>
           <<
              
{ << \globaltwo \tenorChorusMusic >> } \\
              
{ << \globaltwo \bassChorusMusic >> }
           >>
       }

\context Lyrics = lineone \lyricsto verses \verseonewords
\context Lyrics = linetwo \lyricsto verses \versetwowords
\context Lyrics = linethree \lyricsto verses \versethreewords
\context Lyrics = lineone \lyricsto chorusW \choruswomen
>>
}