@tehn thank you for reposting.
green pcb at the bottom is peter's rolz circuit, which would "generate sophisticated beat patterns including chaos at ultrasound frequencies". by connecting nodes by touch or wire, i alter the pattens and signal, then use them to control modules, mainly teletype.
so it's a controller which is generative and controllable at the same time, with a chaotic but not random behavior which can be learnt though time and practice.
just type is the core of this build, it redefined the meaning of the word "computer" for me and many.