initial repeats with alternate bar style

[Steve Tarr]

I'm trying to reproduce some Sacred Harp music.  The piece starts with a 
repeated section which starts with a partial measure.  It's marked with 
a column of dots at the beginning of the piece.  The snippet shown in 
"Printing a repeat sign at the beginning of a piece" doesn't have the 
desired effect in this case.

Staff 1 shows the behavior with the standard repeat bar - it's displayed 
at the beginning of the piece as expected.  Staff 2 shows what happens 
when I use an alternate bar style - the repeat mark disappears.  Staff 3 
appears visually correct, but the grace note causes other problems in 
the full piece, so I'd rather not use this workaround.

Is there some way to modify or augment the "firstRepeatOverride" snippet 
so that it will allow arbitrary barlines - not just the standard repeat 
bar - to be displayed at the beginning of a piece?

-Steve Tarr



\version "2.13.31"
% snippet from "printing-a-repeat-sign-at-the-beginning-of-a-piece.ly"
\include "firstRepeatOverride.ly"

\score {
    \new Staff {
        \firstRepeatOverride
        \bar "|:" f'1
        \bar "|:" f'1 \bar ".|"
    }
}

\score {
    \new Staff {
        \firstRepeatOverride
        \bar ":" f'1
        \bar ":" f'1 \bar ".|"
    }
}

\score {
    \new Staff {
        \grace s16
        \bar ":" f'1
        \bar ":" f'1 \bar ".|"
    }
}