Thank you :) Yes! In Italy there are 20 regions, and almost each region has its own traditional folk music, food recipes, speech ( or dialect) and so on. This is a tipical dance group from Sardinia region.
I have seen a few videos about nationalities in Italy. They overlook quite a few of them or downplay it. Italy was invaded over twenty times by different people and all of them left something behind. Some more and some less. The most overlooked group is the Greeks of Sicily, Calabria and especially Apulia (Graecia Salentina)
Sardinian culture is influenced a lot the Spanish Catalonians mercenary army that settled there.As a matter of factparts of the interior in Sardinia did not speak Italian until recently.
The Catalan army was army of fortune (Mercenaries) That the Byzantines hired for service in the East. When the were disbanded by the Byzantine Emperor, they started looting Anatolia and Greece until they were defeated north of Deiphi and headed for the West and on the way settled in different inslands and countries. Sardinia was one. Part of that culture you see today in Sardinia.