I wrote this piece (which does have lyrics), for a youth festival in 1985. Dr. King's daughter, Bernice, attended that festival.

Lyrics

CHORUS:

We are the dreamers,
the shakers and screamers!
We are calling for peace;
the world will hear our voices.
We are the dreamers.
Tomorrow we're leaders!
We are working for peace.
Peace is our choice!

[I misplaced the other lyrics! I will post when I find them. :)]