Slight variation from version on page 2 of the Twa Sisters is the Cruel Sister, found under "C" in the Digitrad. I think, (but am not sure, as usual -- will have to look on the liner notes) that Old Blind Dogs actually sings "Lay the bairn to the bonny broom" as the second line of each couplet -- if that's what you're after.

Will check; am headed home now.

Sarah