The word 'παιάν' is a Greek equivalent of 'paean'. It's spelled 'paian' in Roman letters. It's applied to songs that may be solemn as chants or triumphant with praise.
There are a few words you could use. Disruption, interruption or break would all work, as in: The continuity of the electrical current was interrupted. The continuity of the plain was broken by a low...