sentences:  The Cosmic Jokers performed at several acid parties to be held at the sound studio owned by Dieter Dierks, where musicians were offered drugs in exchange for recording tracks.Participants included Manuel Göttsching and Klaus Schulze of Ash Ra Tempel, and Harald Grosskopf of Wallenstein, and Dierks.Prior to this, all of the musicians had been involved with Kaiser's Cosmic Couriers label.