The story of Esther and Nikolaj's experiments at the intersection of body and sound continues with the publication of two sketches dated 1986. Amateur electronic music isn't a strange thing, but the unusual thing about these recordings is that a couple of professionals in fields far from being related to art, having only access to medical and research equipment, became interested in its non-standard use. Unfortunately, the number of these records is scarce, apparently remaining only a strange experiment in the life path of the Søndergaard family. A recent find - several data recorder cassettes, one of which is marked: "Jeg synger kroppen elektrisk!" In an attempt to find out the details of the techniques and technologies used to create the composition, one of the keys was the type of recorder listed in the notes - TEAC R-71. Information about these registration devices is rather scarce, but apparently they were used in medical and metrological studies (mentioned for example in such works as “INDUSTRIAL SEATING AND SPINAL LOADING” by Jurgen Eklund, M. Sc.) for fixing various kinds of sensors and, importantly, suitable for audio recording too.