The day before we talk, on the anniversary of her wedding to the late Lou Reed, Laurie Anderson woke up in Paris with his song Sunday Morning ringing in her head. She recites the words: “‘Sunday morning, and I’m falling. I got a feeling I don’t want to know. Early dawning, Sunday morning, it’s all the streets you crossed, not so long ago.’ And, you know, it ends up with such a great line,” she says. “‘Watch out. The world’s behind you.’”Anderson never planned to get married, she says, “but I was trudging along a dusty road in Colorado, I...