Almost five years after the kickstart compilation »El sol desde oriente«, Passat Continu moves forward with more Segura's unreleased stuff. Inspired by Martin Heidegger's »Sein und Zeit«. »El ser y el tiempo« are the first solo recordings of the Tenerife-born composer, originally a seven track record that together make up a little anomaly in the Spanish experimental music scene. This sound document recorded between 1976 and 1978 is presented fully remastered from its original tapes and comes with a bonus track, with the collab of Juan Belda.