Crazy Musical Show On Roads of Barcelona

In Barcelona you can enjoy the musical show line on the roads performed by music band Factoria Circular on their crazy music vehicle called Rodafonio, created by renowned designer and musician Cesar Alvarez Bayer, it consists of a gigantic wheel that's four meters high and only 15 cm wide, like a huge waffle iron.
The wheel can accommodate a crew of five - the members of the Catalan music band 'Factoria Circular'. Three musicians sit inside the wheel in their respective metal circles, playing their musical instruments - a guitar, a saxophone, and a set of drums - to various tunes, while occasionally spinning inside the giant wheel. The other two members are actors who pedal the wheel into motion, bringing the huge mechanical device to life.
The traveling street show is a fine collaboration of the principles of geometry and music. Never before have mathematical formulas and sheet music been combined to create such a mind-blowing spectacle that lights up carnivals and brings about a festive mood to any street.
Rodafonio is a self-produced collaboration with Barcelona City Council for La Merce, an annual festival that involves music, dance, performing arts and popular culture activities for six days, in order to observe the Roman Catholic feast day of Our Lady of Mercy. The contraption has also toured in other countries such as Austria and Chile, where it was very well received. Many have hailed it as "a stunning theatrical element", "an urban tale", and "a dreamlike and fantastic trip".