‘La Sardana’ is a popular dance that became the national dance in Catalonia. It consists of a group of men and women holding hands in a circle, traditionally alternating with the sexes, and dancing to the sounds of a ‘cobla’, formed by twelve musicians playing tranditional Catalan instruments. They dance to the right and to the left with a changing tempo.
The dance was temporarily banned during Franco’s dictatorship, but later on it was declared national heritage by the Catalan Government.
-Sardana in wikipedia: The catalan national dance explained in wiquipedia