I like to work with different groups of people for the same reason that you presumably like to talk to different people. It is the difference in people that's interesting not the sameness. Because I am not a pop musician I do not need to satisfy the kind of public that is buying a commodity. I do not have to crank out cheeseburgers or tennis shoes that are identical each and every time. I sell soul not clothes.
Projects come around in turn.
I finish a Pere Ubu album and then it's time to record another kind of album. It's like a bus schedule. As for the things I'm writing about, however, that does not change. I write about the same thing regardless of who I am working with. I am the same singer.