Limpe FUCHS (Drums, electronics & vocals), Friedrich GULDA (Piano), J.A. RETTENBACHER (Bass) and Paul FUCHS (Horn, percussions & electronics) play a totally improvised and free music. Their art is in the same vein as the electro-acoustic underground musics of many German bands of that period with two long suites (20 and 27 minutes). The complexity of the music and the instrumental combinations are totally based upon the freedom of their inspiration and the complicity between the musicians. By these aesthetics they enhanced the great tension and substance of this improvised music.