Just to remind myself that there are at least two ways of doing things, here are a couple of clips I came across some time ago, both of outstanding performances.
The first one is Arturo Benedetti Michelangeli playing Domenico Scarlatti’s Sonata in B Minor K 27 in 1949. What this feels like to me is approaching a crystal lying at the centre of the universe. Everything is under complete control: the piano, his hands, his face, his feet, the turn-ups on his trousers and every single hair on his head. It is so perfect that if any flaw had developed anywhere in the crystal, if someone for example were to have crept in and untied one of his shoe-laces, perhaps everything would have shattered, leaving a pile of tiny splinters and his moustache.