German ambient space-rock pioneers Kluster recorded three LPs during their brief life span, all available in this deluxe box set. Discover the studio albums, Klopfzeichen (1969) and Zwei-Osterei (1970) and Eruption (a live recording of the band's last concert in 1971), in all their glory! All three are amazing examples of pioneering ambient music featuring guitar, percussion, keys etc heavily processed with echo, filters, and tape machines to create a unique effect, unlike anything else at the time.