Heights of Macchu Picchu by Pablo Neruda) is considered a South American rock masterpiece. Congreso and Los Blops would follow this more elaborated way to make music and all three would be considered cornerstones in the definitive "Chilenization of Rock". Congreso would last more than 50 years creating new music and becoming an iconic Chilean band. En Busca del Tiempo Perdido, Congregación, Combo Xingú, Sol y Medianoche, Kissing Spell/Embrujo, Frutos del País and Panal made the rest of the scene. Their style would be later known as Fusión latinoamericana. Psychedelic rock and Piedra Roja festival Psychedelic rock and blues rock came to Chile in the 1970s as it did elsewhere, influencing bands like Aguaturbia, Escombros and Sacros. Escombros contained former members of Los Mac's and Los Jockers and sung in English, producing covers of Jimi Hendrix and Led Zeppelin among others. Sacros have been compared to The Byrds and Bob Dylan, with traces of, and released their first album, Sacros, days before the 1973 military coup. The album is now a collector's item. The famous Woodstock Festival in the U.S. inspired a similar event in Santiago, the Piedra Roja Festival of October 1970. The festival attracted many followers of the hippie movement and included performances by Los Blops and Los Jaivas, but poor organization led to a chaotic event which included sound problems and the presence of drugs and crime. The festival was, according to the National Digital Library of Chile, "the moment in which the youth subculture, represented by rock, became a public issue and was reported in the media as a latent social problem. Young people were shown as liberal, drug-taking, long-haired rebels who were affecting mainstream society." Major music festivals of the time were Primer Encuentro de Música de Vanguardia (January 1970), Primer Festival de Rock Progresivo (October 1971) and Los Caminos Que Se Abren (February 1973). All three happened at Quinta Vergara (Viña del Mar). Underground scene during the dictatorship (1973–1989) The proliferation of Chilean rock bands in the early 1970s ended with the military coup of 11 September 1973. The repressive military regime prohibited all manifestations of rock music, along with many other forms of culture (see Military government of Chile (1973–1990): cultural life). This brought about a decline of the music industry in Chile and a deterioration of the Chilean rock scene. Some Latin American fusion bands broke up, like Los Blop's, while others