“The Québécois balladeer’s first English-language album in six years opens with a shock. Recorded in the aftermath of her husband’s death in 2016, Courage is suffused with lyrics about loss and rebirth, themes you’d expect to be bolted to Titanic-sized ballads. But on opener Flying on My Own, those emotions are anchored to a gloriously camp electro-dance stomper, with Dion’s powerhouse voice ricoch”