Sole release by this Colombian band that surfaces briefly after the Speakers, Young Beats, Ampex and Time Machine era comes to an end. The band boasts an Italian jazz-rock drummer Roberto Fiorilli and legendary Genesis Bassist Humberto Monroy. The record consists of one theme divided into two long experimental progressive ventures (Viaje I and Viaje II) of fierce, fluid and free collective improvisation with spacey feels and a rich texture of Hammond organ, guitar, bass, tenor sax, percussion and drums that takes the listener on a trippy psychedelic Krautrock-sounding "out there" voyage.. First performed live at the "Festival de la vida" in Bogota in 1970 with an audience of close to ten thousand, Siglo Cero's concert was then recorded in the legendary Ingeson studio with the same musicians and same production as the live gig. This concert became a pivotal and highly influential experience for an entire generation of soon to be Colombian rockers who tuned-in to the irreverent breaking of boundaries that this music showcased. Comes with liner notes From Zodiaco co-founder Alvaro Diaz Manrique.