The old man took the book and drew up a chair from the dim penetralia of the shop. It was then that I noticed a surprising fact: what I had, at a careless glance, taken to be a common counter I perceived now to be a piano of a square, unfamiliar shape. The old man sat down before it. “You must forgive any defects in its tone,” he said, turning to me. “An early Broadwood, Georgian, you know, and has seen a deal of service in a hundred years.”

He opened the lid, and the yellow keys grinned at me in the darkness like the teeth of an ancient horse.

The old man rustled pages till he found a desired place. “The ballet music,” he said: “it’s fine. Listen to this.”

His bony, rather tremulous hands began suddenly to move with an astonishing nimbleness, and there rose up, faint and tinkling against the roar of the traffic, a gay pirouetting music. The instrument rattled considerably and the volume of sound was thin as the trickle of a drought-shrunken stream: but, still, it kept tune and the melody was there, filmy, aerial.

“And now for the drinking-song,” cried the old man, warming excitedly to his work. He played a series of chords that mounted modulating upwards towards a breaking-point; so supremely operatic as positively to be a parody of that moment of tautening suspense, when the singers are bracing themselves for a burst of passion. And then it came, the drinking chorus. One pictured to oneself cloaked men, wildly jovial over the emptiness of cardboard flagons.

“Versiam’ a tazza piena

Il generoso umor . . .”

The old man’s voice was cracked and shrill, but his enthusiasm made up for any defects in execution. I had never seen anyone so wholeheartedly a reveller.

He turned over a few more pages. “Ah, the ‘Valse Infernale,’” he said. “That’s good.” There was a little melancholy prelude and then the tune, not so infernal perhaps as one might have been led to expect, but still pleasant enough. I looked over his shoulder at the words and sang to his accompaniment.

“Demoni fatali

Fantasmi d’orror,

Dei regni infernali

Plaudite al signor.”

A great steam-driven brewer’s lorry roared past with its annihilating thunder and utterly blotted out the last line. The old man’s hands still moved over the yellow keys, my mouth opened and shut; but there was no sound of words or music. It was as though the fatal demons, the phantasms of horror, had made a sudden irruption into this peaceful, abstracted place.