You've had a productive year, including museum shows; a book, Acorn, that offers readers 100 conceptual instructions; and an album, Take Me to the Land of Hell, out on Sept. 17. What prompted all this creativity?
When I have time to do these things and I get inspired, I just do it.
How has your creative process evolved over the course of your career?
My career? I never think of it as a "career." Art and music and all those things that I'm creating are just part of me.
Has that part of you changed?
I don't think...