Here's the situation: I have a song which has a couple of places
where a phrase is echoed while the last word in the phrase is held.
I could represent this using one voice as follows:

X:1
T:Echo done with one voice
M: 4/4
L: 1/8
K:C
c c c2 | "F"A4 A, A, C2 | C4
w: In-a my heart, (In-a my heart)

The problem here is that the A note for the word "heart" should really
be held for 6 beats (i.e. - "A8- | A4") rather than just the 2 beats.
This looks like a nice place to use multiple voices:

X:1
T:Echo done with multiple voices
M: 4/4
L: 1/8
K:C
%%staves (1 2)
V:1
c c c2 | "F"A8- | A4
w: In-a my heart,
V:2
x4 | z4 A, A, C2 | C4
w: (In-a my heart)

While this does allow me to have the full 6 beats for "heart", it
gives me the problem that the words for the first voice appear
*above* the staff, while the words for the second (echo) voice
appear below the staff.

How can I get abcm2ps to put the words for both voices below the
staff, along the lines of:

----------------------------------------
----------------------------------------
----------------------------------------
----------------------------------------
----------------------------------------
In-a my heart,
(In-a my heart)

Thanks.

Geoff Loker