The term "kosmische Musik" was coined either by Edgar Froese in the liner notes of Tangerine Dream's 1971 album "Alpha Centauri" or by record producer Rolf-Ulrich Kaiser as a marketing name for bands such as Ash Ra Tempel, Tangerine Dream, and Klaus Schulze. The following year, Rolf-Ulrich Kaiser's Ohr Records released the compilation "Kosmische Musik" (1972) featuring tracks by Tangerine Dream, Klaus Schulze, Ash Ra Tempel, and Popol Vuh. Kaiser eventually began referring to the style as "cosmic rock" to signify that the music belonged in a rock idiom. German producer Conny Plank was a central figure in the kosmische sound, emphasizing texture, effects processing, and tape-based editing techniques. Plank oversaw kosmische recordings such as Kraftwerk's "Autobahn", Neu!'s "Neu! 75", and Cluster's "Zuckerzeit".