This clip is in Dutch, sadly it hasn’t been captioned in other languages. It’s an episode from the public broadcasting company’s ‘Tienerklanken’, a programme aimed at young people (teenagers).
The beginning of the clip shows interviews with a number of 1960s youngsters who loathe electronic music, and are more into Jazz and Blues. The second part shows the researchers at IPEM demonstrating their (largely hand-built) equipment and explaining how they work:
It’s a great reference work, and hard to imagine that Kraftwerk’s Autobahn was only about ten years in the future.