wainwrightsis Montreal’s Martha Wainwright comes from Canadian musical royalty, being the daughter of Kate McGarrigle and sister of Rufus Wainwright. She and her American half-sister Lucy Wainwright Roche have released an album of lullabies, some of them a little twisted. “Lullaby” is gentle and beautiful, but with lines like “Shut up and count some sheep/Do me a favour don’t bitch in your sleep” it has plenty deliciously dark humour.