Three experimental electronic pieces made after the departure of Conrad Schnitzler (Kluster). The principles of composition prefigure what we can hear on Cluster II: long abstract & \"visceral\" soundscapes using echo-machines, microphones, and aleatoric electronic \"collages\". The music is constantly impressive, giving a certain \"claustrophobic\" atmosphere. Track 1 starts with electronic noises and repetitive, obsessional electronic patterns. After 5 minutes of tormenting effects, the music includes different primitive synth sounds and cyclical, electronic rotations. No melody here but a very evocative mental picture, maybe the sound of nightmare or bad dreams. The tension goes higher during the last minutes. The pulsation is changing, exploring the place of emotional \"trance\". Track 2 begins with some vibrant, linear, oppressive industrial sounds, floating into the room. The orchestration features \"fuzzy\" accentuations, sustained synth chords and some noisy arrangements. As in the previous compositions, the last track contains some minimalist, \"hypnotic\", circular motifs in the background. A \"monochord\" surrounds the deep spheric place. We can hear similar materials in Cluster II. Without any doubts the best Cluster with the following one: psycho-electronic works focused on mechanical and organic \"assaults\".