(Imagine, if you can, a top young musician of today following up their first no. 1 in her native U.K., Bush has pushed back against traditions as much as any major pop star, with every new album a departure, every new sound a twist. A star since she was 19, when her 1978 debut single “Wuthering Heights” hit no. Rebirth has always been central to Bush’s music. “D’you know what?” she sings on “The Morning Fog,” newly appreciative of the people in her life after going through such a harrowing experience. Close to death, the castaway experiences a Christmas Carol–like series of past, present, and future hallucinations before being rescued (or appearing to be, at least). It’s the last song of her 1985 masterpiece Hounds of Love-the finale of a seven-song suite titled The Ninth Wave, which tells the story of a castaway in a life jacket drifting through the open ocean.