Luzbel and Semefo contributed to the scene with original approaches, when the most radical forms of the genre like death metal and grindcore were fully digested. Today the metal scene is populated by such groups as Brujeria, Hacavitz, and Disgorge. The early bands were followed by many others, in an ever-growing underground movement of sports arenas weekend concerts all over the country. Important bands of this period were Rupestre Music Since the late 1960s, poets have sung to acoustic guitars and played in the then-prosperous café cantante scene. These forums showcased the folkloric music that came from South America, specially from Peru and Chile. Performers like Víctor Jara, Violeta Parra, Inti-Illimani, Los Folkloristas and local Óscar Chávez among many others denounced in their songs the atrocities of the military juntas, all of which experimented with even worse repression than Mexico during the Tlatelolco incident, that governed most of the countries from Nicaragua to Tierra del Fuego, and curiously the cafes cantantes thrived, as long as nothing was overtly critical of the Mexican government in general. The scene eclipsed by the early 1980s, but several musicians like Rockdrigo, sometimes nicknamed "the Mexican Bob Dylan" developed a uniquely Mexican folk style, which came to be known as música rupestre. Later, the musicians were dubbed 'Los Urbanos', because although they played acoustic guitars, the themes of their lyrics revealed the adverse conditions the working class had to face in the big cities, and blues forms were incorporated in their compositions. When El Tri made an electric rendition of Rockdrigo's Metro Balderas the fusion of rock and música rupestre was consummated. Many others continued to surface, but Rockdrigo's untimely death during the earthquake of 1985 in Mexico City skyrocketed his already legendary status, and thus he is considered the most influential exponent of both rock urbano and música rupestre. Other notable bands were Banda Bostik, Sur 16, Tex-Tex and Interpuesto. The racially integrated group Los Nómadas was one of the few to survive for decades. Members of the group consisted of Chico Vasquez, Jose 'J.D.' Moreno, Abel Padilla, and Bill Aken, who formed the band in 1953; they stayed together until well into the 1990s. They were often called into recording sessions to back up Mexicano artists such as Freddy Fender. Their final recording session was in early 1994; when Chico Vasquez died several months later, the group disbanded. The most prominent member of