I'm not a fan of black, so personally I steer away from it in quilts. I'd first border it with the cream/beige that's already in your quilt. Then one of the medium colors you have in your quilt and finally bind it with one of the darkest colors in your quilt. I usually think inside the box. I do love piano keys! Look at the quilt borders on the pink quilts...
http://www.quiltingboard.com/picture...e-t154848.html