One could say that it is very natural to write for a “natural” [as opposed to prepared] piano - yes, maybe, but for me this had not been natural for many years. Exploring new things and sounds sometimes also has to do with not wanting to face the status quo, hiding oneself in a so-called future. In many of my earlier pieces I had fled into preparing the piano, wanting to avoid hearing the natural piano sound, which I knew too well and with which I had lived for forty years. I had always found it...