The Synthesizer Cooperation Synco was founded 1984 in Berlin by Frank Klare and Mirko Lüthge. They bought some expensive analog equipment from Tangerine Dream and composed music in their style. This CD consist of remastered and remixed cassette material (tracks 1-8) and new work (tracks 9-14).
Since 1991, a complete edition of all recordings in which Karlheinz Stockhausen has personally participated is being released on compact discs. Each CD in this series is identified by Stockhausen's signature followed by an encircled number. The numbers indicate the general historical order of the works. Stockhausen realised the electronic music and participated in these recordings as conductor, performer, sound projectionist, and musical director. He personally mixed down the recordings, mastered them for CDs, wrote the texts and drew the covers.