Theo's guitar pierces him because it also carries a reprimand, a reminder of buried dissatisfaction in his own life, of the missing element. This feeling can grow when a set is over, when the consultant neurosurgeon makes his affectionate farewells to Theo and his friends and, emerging on the pavement, decides to go home on foot and reflect. There's nothing in his own life that contains this inventiveness, this style of being free. The music speaks to unexpressed longing or frustration, a sense that he's denied himself an open road, the life of the heart celebrated in the songs. There has to be more life than merely saving lives. The discipline and responsibility of a medical career, compounded by starting a family in his mid-twenties - and over much of it, a veil of fatigue; he's still young enough to yearn for the unpredictable and unrestrained, and old enough to know the chances are narrowing. Is he about to become that man, that modern fool of a certain age, who finds himself pausing by shop windows to stare in at the saxophones or the motorbikes or driven to find himself a mistress of his daughter's age? He's already bought himself an expensive car. Theo's playing carries this burden of regret into his father's heart. It is, after all, the blues.

- Ian McEwan, Saturday

It's amazing how McEwan manages to introduce this piercing insight so elegantly. In one passage, how many unfinished lives described, how many miles of open roads imagined but never traveled?