Solo voice with choral parts between

Since trusty Google hasn't seemed to answer my question (or I haven't found out how to ask it in *just that way*), I'm turning to the forum.

I'm arranging solo voice part for a cantor that will be followed up by a four part choral section. How can I have a single clef line for the solo part and then have the four parts break out into a line of their own?

In another way:

VOICE...................

S............
A...........
T...........
B...........

VOICE...................

S...........
A..........
T..........
B..........

Where the SATB are connected by a bracket, but the VOICE line is not connected to the others via bracket.

Any help would be much appreciated!

Thanks!