Answer to the secret formula

Ok, people here is the answer. Everyone was correct!!!! in a way... Don't you hate me!! haha

Barcelona is going through a major "face lift" for next year and this formula is their way of saying how great Barcelona is. Now stay with me here... its their "modernistic" approach to say that all little things (the little "b"s) add up together to form this great big city of ours ("B" for Barcelona). There are also a series of tv commercials that depict different things that are found in Barcelona (that start with a "b" of course). The commercials ends with something along the lines of "how wonderful it is to live in Barcelona".
That's it!
But it was fun to see how everyone interpreted it.

Ciao!