Rome is a city of vivid and unforgettable images: the view of the city silhouette from Janiculum Hill at dawn for example. But Rome is also a city of sounds, beginning early in the morning with the peal of church bells. The streets fill with cars, taxis and motor scooters, all blaring their horns as they weave in and out of traffic; the sidewalks become overrun with bleary-eyed office workers rushing to their desks after stealing into crowded cafes for the first cappuccino of the day.