The Zodiak Free Arts Lab was based in a large rented backroom area within a building in Hallesches Ufer, along the north bank of the Landwehr Canal in the Kreuzberg district of Berlin, near the corner of Großbeerenstraße.
While not quite reaching the status of being "house band," Tangerine Dream certainly played there frequently over a 3-month period, sometimes for five or six hours a night and for little or no payment, and the loud, iconoclastic improvised music sometimes climaxed with Who-style destruction of equipment.
Whether due to the Schaubühne's management calling for things to be toned down, or the restlessness of the West Berlin scene simply seeking other outlets for expression, has not been recorded, but the Zodiak lasted only a few months, closing in early 1969.
After leaving Tangerine Dream, Schnitzler rejoined one of the Zodiak's other founders, Hans-Joachim Roedelius, together with Dieter Moebius (born 1944), and formed his own band, Kluster (name later anglicised to Cluster).
As for the building that once housed the Zodiak, the Schaubühne relocated in 1981 to its present home in a former cinema (the Kino Universum, designed by architect Erich Mendelsohn in 1926), in Lehniner Platz, along the Kurfürstendamm.