Barlines in early choral music

[Christophe Rhodes]

This e-mail probably isn't going to be terribly clear, as I can't
remember the name for the notation that I'm after.

Is it possible in Lilypond to have barlines going between the staves
in a system, but not actually on the staves? Something like:

-------------------------------------------------------
2--|---------------------------------------------------
---|-------|-----------------|---|---------------------
2-O--------|-------------|---|---|---------------------
----------O-.------------|--*---*----------------------
                 |      *          |
                 |                 |
-------------------------------------------------------
-------------------------------------------------------
-------------------------------------------------------
-------------------------------------------------------
-------------------------------------------------------
                 |                 |
                 |                 |
-------------------------------------------------------
-------------------------------------------------------
-------------------------------------------------------
-------------------------------------------------------
-------------------------------------------------------

(I hope you get the idea).

If not, which bits of the source should I look at to include this
option?

Cheers,

Christophe
-- 
Jesus College, Cambridge, CB5 8BL                           +44 1223 524 842
(FORMAT T "(address@hidden ~}~3:*'address@hidden ~})" 'FORMAT T 
"(address@hidden ~}~3:*'address@hidden ~})")