Page layout - move score blocks

[Charlotte]

Hi all,

Forgive a newbie's potentially stupid question. This is my first excursion into 
Lily, or Scheme, or LaTeX etc. - or in fact anything remotely Unix. I'm running 
LY on both my Windoze XP machine, and my OSX Mac.

I'm using LP to typeset a set of Preces and Responses for use in the Anglican 
church. For each response there is a cantor incipit, immediately followed by a 
choral response of 2-3 bars. I've successfully used gregorian notation to set 
the cantor parts, and by putting both \score blocks in a \markup block, got the 
cantor and choral sections to appear on one line.

However, I have three problems:
ii) the cantor staff needs to be vertically aligned with the bottom line of the 
(3-stave) ChoirStaff. How do I do this?

i) there needs to be a gap between the end of the cantor staff and the 
ChoirStaff. (At present, the ChoirStaff is almost overlapping with the cantor's 
staff, cutting off the \finalis.) The ChoirStaff should be right-aligned on the 
page - so that all the ChoirStaves line up along the right margin, regardless 
of where they start in the middle of the page, following the cantor line.

iii) I'm using identical \layout blocks in each \score section (of which there 
are well over 20). This can't be the best way, surely?

Snippet of my code follows.

Any suggestions anyone can make as to how to sort out the oddly thick note-
stems and final double-bar elements would also be gratefully received.

Thanks,

Charlotte.

%%%Begin%%%
\version "2.10.25"
\include "gregorian-init.ly"
\paper {
        #(set-default-paper-size "a4" "portrait")
        between-system-padding = #0.1
                between-system-space = #0.1
                ragged-last-bottom = ##t
                ragged-bottom = ##t

        }
\header {
        title = "Preces and Responses"
        composer = "C. Mercer"
        dedication = ""
        copyright = "C. Mercer 2007"
}

%notes and words
global = {
        \key c \minor
        \override Staff.TimeSignature #'break-visibility = #all-invisible
        \autoBeamOff
        \cadenzaOn
        }

cantor = {
        \clef bass
        \key c \minor
        \set Score.timing = ##f
        \cadenzaOn
        \override Staff.TimeSignature #'break-visibility = #all-invisible
                \override Stem #'transparent = ##t
        }


% O Lord open ...
     CMOLordOpen = \relative c' {g4 c2 bes4 c  \finalis
     }
     OLordOpen = \lyricmode  {O \once \override LyricText #'self-alignment-X = 
#-1 "Lord, open Thou" our lips
    }

% And our mouths...
     SMAndOurMouths = \relative c'' {f,4 g \bar "|" c2 c4 \bar "|" es d c( bes) 
\bar "|"c2 \bar "|."
     }
     AMAndOurMouths = \relative c' {c4 ees8[ d] d4( c) g' g f es( d ) c2
     }
     TMAndOurMouths = \relative c' {aes4 bes aes2 f4 aes bes c( bes) g2
     }
      BMAndOurMouths = \relative c {f4 f ees2 bes4 c ees f( g) g2
     }
     AndOurMouths = \lyricmode {And our mouths shall shew forth Thy praise
     }

%O Lord open thou / And our mouths
\markup {
        \score {
                \new Staff = cantor <<
                \new Voice ="COLordOpen" { << \cantor \CMOLordOpen >> }
                \new Lyrics \with {alignAboveContext=cantor} \lyricsto 
COLordOpen  \OLordOpen
                >>

        \layout {
                \context {      \Staff
                        % a little smaller so lyrics can be closer to the staff
                        \override VerticalAxisGroup #'minimum-Y-extent = #'(-
3 . 3)
                }
                \context { \Lyrics 
                        \override LyricText #'font-size = #-2 \override 
LyricSpace #'minimum-distance =#1.2
                        \consists "Bar_engraver"
                        \consists "Separating_line_group_engraver"
                        \override BarLine #'transparent = ##t
        
                }
        }
        }

        \score {
        \new ChoirStaff <<
                        \new Staff = sops <<
                        \new Voice = "SrespAndOurMouths" { << \global 
\SMAndOurMouths >> }
                >>
                         \new Lyrics \lyricsto SrespAndOurMouths \AndOurMouths

                \new Staff = alto <<
                        \new Voice = "ArespAndOurMouths" { << \global 
\AMAndOurMouths >> }
                        >>
                 \new Lyrics \lyricsto ArespAndOurMouths \AndOurMouths
                
                        \new Staff = men <<
                        \clef bass
                        \new Voice = "TrespAndOurMouths" { \voiceOne <<\global 
\TMAndOurMouths >> }
                        \new Voice = "BrespAndOurMouths" { \voiceTwo <<\global 
\BMAndOurMouths >> }
                        >>
                        \new Lyrics \with {alignAboveContext=men} \lyricsto 
TrespAndOurMouths \AndOurMouths
                \new Lyrics \lyricsto BrespAndOurMouths \AndOurMouths
        >>

        \layout {
                \context {      \Staff
                        % a little smaller so lyrics can be closer to the staff
                        \override VerticalAxisGroup #'minimum-Y-extent = #'(-
3 . 3)
                }
                \context { \Lyrics 
                        \override LyricText #'font-size = #-2 \override 
LyricSpace #'minimum-distance =#1.2
                        \consists "Bar_engraver"
                        \consists "Separating_line_group_engraver"
                        \override BarLine #'transparent = ##t
        
                }
        }
        }
}
%%%Ends%%%