Music: Pioneer of Electronic Music: Else Marie Pade

Let me introduce you to a electronic music pioneer who's work preceeds even Klaus Schulze , Tangerine Tream and such by a decade:

Else Marie Pade

https://en.wikipedia.org/wiki/Else_Marie_Pade

If you feel like daring to venture into some experimental electronic music, have a listen to the YT link below.
I find it amazing to think that this was made in 1962! Almost 60 years ago! Would be really interesting to know how she made this, with what equipment ect.
Almost incomprehendable today, in the age of computers, Ableton Live and all that.