We also had the unique experience of stumbling upon a sardana dance, a traditional Catalonian dance that was going on in a square in Barrio Gotic. It was a simple circle dance accompanied by a small band of instruments. Everyone seemed to know what they were doing so we watched a bit, but had a chance to jump in before it all ended.
Barcelona seems to get more and more familiar each time a go, although I enjoy new things every time along with the old. I'll never however, get tired of La Champañería.