Choral music

[Doug Asherman]

Hi:

I'm trying to do something simple: a choral arrangement with an 
arbitrary number (> 4) of verses positioned between two staves. The 
soprano and alto parts would be in the treble staff, and the tenor and 
bass notes would be in the bass clef staff.

There is probably a simple way to do this, but I can't seem to find it. 
I can do this in musiXteX (granted, I had to hack the musixcho macros a 
bit), but doing it in lilypond eludes me.

If someone could point me in the right direction, I'd be much obliged.

Thanks,

Doug