When Jimmy Buffett has an idea for a song — sometimes just a phrase — he writes it down on any available scrap of paper and stuffs it into an old sea chest. When he’s ready to write some new music, he sits down and pulls out all those scribbles, which I imagine must be torn off bar napkins and beer coasters, and sorts through them, one by one. He says many of his most popular songs marinated in his sea chest before emerging as lyrics.

“I have a trick that I used in my studio, because I have these twenty-eight-hundred-odd pieces of unreleased music, and I have them all stored in iTunes,” Eno said during his talk at Red Bull. “When I’m cleaning up the studio, which I do quite often—and it’s quite a big studio—I just have it playing on random shuffle. And so, suddenly, I hear something and often I can’t even remember doing it. Or I have a very vague memory of it, because a lot of these pieces, they’re just something I started at half past eight one evening and then finished at quarter past ten, gave some kind of funny name to that doesn’t describe anything, and then completely forgot about, and then, years later, on the random shuffle, this thing comes up, and I think, Wow, I didn’t hear it when I was doing it. And I think that often happens—we don’t actually hear what we’re doing. . . . I often find pieces and I think, This is genius. Which me did that? Who was the me that did that?”