After
The Speakers split in 1969,
Humberto Monroy co-founded
Siglo Cero with Jaime Rodriguez, Mario Renee, Ferdie Fernández and Speaker's drummer Roberto Fiorilli.
Siglo Cero was a progressive rock outfit, with major jazz influences. In 1970 they released
Festival de la Vida, which was recorded live the 27th of June of the same year at a performance in Bogotá's Parque Nacional, before 10,000 people.
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