defining "orphan" stave for cantor part?

[MrBouffant]

Hello!

 

I am wanting to set some music which has the general layout:

 

      SA

C    TB

 

SA is a stave with two parts (soprano, alto) sharing the treble clef

TB is a stave with two parts (tenor, bass) sharing the bass clef

 

I've set these OK, but the whole staffgroup needs to be 'prefixed' by a separate short stave

for the Cantor (C in the example above). This is in the bass clef and sits to the left of the

main staff group in vertical alignment with the TB stave.

 

Can this be done in lilypond? I have tried various ideas but as a newbie nothing seems to work!!

 

I'm using version 2.2.5 under WinXP.

 

Thanks in advance for your help

 

 

--mrb