Then there’s progression in terms of technical things. Forcing yourself to find new methods of coming up with chord progressions or melodic ideas, finding a new piece of software or hardware that’s exciting. You want to feel as if once you’ve developed a method it should no longer work, because when you tell yourself, “O.K., I’ve got this now” that’s the point where things fall apart. Lyrically, it’s a different thing. I usually have to throw out the stuff when I understand what it means — it’s too flat. Lyrics should be a series of windows opening rather than shutting, which is incredibly hard to do. First-world problems, though.