Perhaps it's one of those cases of a microcosm giving you the whole world. Like a spode dinner plate. Or a single cell. Or, as daisy says, like a Jane Austen novel. When player and listener together know the route so well, the pleasure is in the deviation, the unexpected turn against the grain. To see a world in a grain of sand. So it is, Perowne tries to convince himself, with clipping an aneurysm: absorbing variation on an unchanging theme.

Author: Ian McEwan