Martha Tilson: Knife Slits Water is about sex, plain and simple - but also desire and sexual politics. The day the music was recorded I wasn’t feeling well and had skipped the studio session. Jez and Pete came back to our flat with a cassette, we were all really excited by it. A day or so later, at the mixing session, the line “Who sold that knife to me?” came to me. I think I then wrote the rest of the lyrics in an hour or so. The title came later, and is sort of influenced by Roman Polanski’s Knife in the Water. I think it makes most sense when a woman sings it. It’s tougher then, but Donald’s later version was great.