Utiliser "discordance" dans une phrase

1. Perhaps this matter is best approached through its complement, what does discordance with

2. It must be confessed, however, that the operations, by means of which this service was accomplished, have given no picturesque aid to the mass of ruins, but have rather introduced a new element of discordance and confusion, in the contrast between the cold, flat, new surfaces of masonry and the rugged, weatherbeaten ruins in which they are embodied