The title an apt description of the furtive intercourse between these three Portuguese improvisors -- Ernesto Rodrigues on viola & crackle box (an electronic sound generator), Bruno Parrinha on bass clarinet & alto saxophone, Johannes von Buttlar on percussion -- recording in the studio for 10 improvisations of understated but highly detailed free improvisation.

Frequent collaborators Ernesto Rodrigues on viola & crackle box and Nuno Torres on alto saxophone join with Berlin percussionist Johannes von Buttlar, a member of the Altered Forms Trio who have collaborated with Fred Frith, Raymond McDonald, &c., for four "Cosmic Collisions", highly interactive improvisations with impressive inertia and extraordinary technique.