sentences:  Headed by Javier Martin del Campo, a band was formed in Guadalajara with the intention of interpreting contemporary popular songs of the era in their own style.Initially, their hobby led them to play at local parties, but the resulting fame soon spread beyond their city.They adopted their name after Emiliano Zapata's slogan of "Tierra y Libertad" (Land and Liberty) as a protest to the establishment by using national symbols.