DELTA-SLEEP-INDUCING PEPTIDE (DSIP) was founded in 1989 by Dieter Mauson + Siegmar Fricke. Until 1994 DSIP produced around 25 cassettes, published on various tape-labels all around the world and on the privately run DSIP-cassette-label. The music was recorded with electronic equipment on analogue tape-recorders and cassette-decks in their own homestudios in Hamburg, Mainz and Wilhelmshaven/Germany. DSIP exclusively concentrated on the realisation of experimental + subtle soundtracks which can be described as mind-cinema of the subconscious. The stages of sleep + phenomena of dreams have been musically explored in an idiosyncratic sound-approach. In 1993 DSIP contributed also to a vinyl-LP entitled "Abschied aus Berne" (including a track by Asmus Tietchens) with an extraordinairy soundscape of 10 minutes. Live-performances took place in Belgium and Germany (Herford, Bochum, Hamburg, Mainz). After the last tape PRE-NATAL in summer 1994, DSIP stopped and has subsequently become a legend within the electronic-scene worldwide. Now, 19 years later, the project has been reactivated with a new blogspot-website involving remastered tapes (digital downloads), video-material, photos and a non-chronological mixture of old and new material.