It’s hard to write about the pianist Stephen Hough, now elevated to the status of Sir Stephen, without listing his extensive claims to fame beyond the world of music – as an essayist and blogger, painter, poet, novelist and (not least) one of Britain’s best-known Catholics in the performing arts. Blessed with undoubted genius, he’s the kind of hyperactive polymath who makes the rest of us feel underachieving. If you want chapter and verse, read his new autobiographical memoir Enough, published this month by Faber.