I remember a certain synth sound that I never forgot. It was from the movie "Star Trek, the Motion Picture (1979). The link for the scene is:
https://www.youtube.com/watch?v=kbG3N51MEjM

the sound appears @ :50, 1:13, 1:53, 2:20, 2:27, 3:36, and lastly at 4:40. It is a bassy tone and I don't even know what synths were available back then...Any help would be greatly appreciated!