Re: independently barlined staves in a StaffGroup?

[Jeremy Joseph Boor]

On Sun, Sep 04, 2011 at 08:52:22PM +0100, Trevor Daniels wrote:
> Jeremy Joseph Boor wrote Sunday, September 04, 2011 8:00 PM
> 
> 
> >Breath-marks would work, right?
> >So how do I get what lily thinks is breath-mark
> >to look like a dotted barline?
> 
> There is an example of this in the Notation Reference.
> See 
> http://www.lilypond.org/doc/v2.15/Documentation/notation/chants-psalms-and-hymns

Thank you. I think you are referring to the stuff from
gregorian.ly. It replaces the breath mark with gregorian
divisia, which is swell. But how can I
replace the breath mark with a dotted barline? I think the divisia look
too confusing when there are also solid barlines inbetween
the staves. Is there something else I can put after 
#"stencil = #ly: 

I also looked at the section about changing the breath glyph by
doing \override BreathingSign #'text = \markup (etc.)
but there is nothing to put after \musicglyph, no glyph for
a dottted barline in the feta font list. 

Thanks.

J