. >> i once interviewed andrew lloyd webber and he told me that he came up with the music to "memory"st buying tomatoes at his spanish grocery store. and i was, like, is that really how this happens to you musical geniuses? do you get this? do you literally -- just random places suddenly hear some incredible melody -- >> there's one right there. >> do you? >> yes, you can. sometimes it's quite annoying. and you have to say, later, please come back to me later. the iphone is great to put something done or whatever. it does -- it's the -- i think bob dylan once said there's a -- there's a whole stream of consciousness that you grab on to something at the moment. if you don't get it, it goes on to somebody else. i do believe that artists just know how to reach into there and open that channel and bring that in and part of the craft of it is knowing, okay, i'm at the store, i can't do this now, but i'm going to set some time aside. and be able to pull and do it. >> what is the longest period you've ever had where you literally couldn't write a song? of any quality at all? >> wow. i starte