On December 17th, 1972, Embryo and Aus dem Nichts played in the Wartburg, a Wiesbaden hall. It was one of the gigs that were recorded by Xhol (Caravan) acquaintance Muck Krieger. His recording equipment was then state-of-the-art: an Uher tape recorder CR 124 and two Revox microphones for the spatial acoustics. The result is accordingly well, which you can hear for yourselves now. Hansi Fischer, previously member of Xhol (Caravan) and Embryo, joined the band for the last track. Of his group at that time, Aus dem Nichts, one track from this gig has also been conserved and has been added to the CD as a bonus track. Its artistic style resembles that of the Embryo tracks: rather freely played progressive jazz-rock with world-music elements. The meagre singing is somehow hidden behind the instrumental sound.