Klaatu is a man like being played by Michael Rennie is the 1951 sci fi classic film "The Day the Earth Stood Still". Gort is his robot guardian who scared the wits out of me as a kid. Rent it and watch the b/w version, as colorizing isn't as satisfying. Get's back to the imagination requirement.
The Theramin is used extensively on the sound track and Bernard Herrmann scored it.
The movie inspired a band that took the character's name (Klaatu) and made some music in the 70's.
Tony
#510
I don't know the "why" part as the film is far superior entertainment than their music, in my opinion.