When I wrote the opera, I made a deal with myself that for at least an hour a day I would work on it, even if it meant just sitting on my piano bench, staring into space and thinking about it. It's about keeping it regular, like your bowel movements - let's get real: it's your bodily artistic movements! It comes from the same place.
Arguably, the relationship between Liza Minnelli and Judy Garland is one of the great mother-daughter sagas of all time. Certainly, for certain people, and a lot of them, Liza is the bigger star. Liza is the more kind of viable legend, shall we say. Then there's the other camp, where Judy is the one.