Barnaby Rudge by Charles Dickens

From the workshop of the Golden Key, there issued forth a tinkling sound, so merry and good-humoured, that it suggested the idea of some one working blithely, and made quite pleasant music. No man who hammered on at a dull monotonous duty, could have brought such cheerful notes from steel and iron; none but a chirping, healthy, honest-hearted fellow, who made the best of everything, and felt kindly towards everybody, could have done it for an instant. He might have been a coppersmith, and still been musical. If he had sat in a jolting waggon, full of rods of iron, it seemed as if he would have brought some harmony out of it.

Tink, tink, tink -- clear as a silver bell, and audible at every pause of the streets' harsher noises, as though it said, 'I don't care; nothing puts me out; I am resolved to be happy. ' Women scolded, children squalled, heavy carts went rumbling by, horrible cries proceeded from the lungs of hawkers; still it struck in again, no higher, no lower, no louder, no softer; not thrusting itself on people's notice a bit the more for having been outdone by louder sounds -- tink, tink, tink, tink, tink.