Gay pianist Stephen Hough: “Horowitz once said that there were three types of pianist: Jewish, gay, and bad. Actually I’ve known some that were all three, and instantly a plethora of those who fulfill none of these categories springs to mind, but is there something which makes Horowitz, Richter and Cherkassky (to choose three completely contrasting artists) different from, say, Rubinstein, Gilels and Serkin?”