The year was 1963. My father bought a big table-top GE stereo with an AM/FM radio and a swing-down record player. Something that came with the stereo was a demonstration record.
I enjoyed the first side of the record a lot, and I listened to it many times. I liked the way that one audio sample or snippet of music flowed into the next. The frequency sweep was something I used ten years later to test a stereo system I bought for myself with money earned washing dishes at a restaurant.
Also included on the record were a few so-called Cartoons in Stereo, that I think are still pretty funny. Side B was mostly a sampler of jazz music, but there were also a couple audio cartoons that were parodies of then-current TV commercials. The audio player below has the 20 minutes of side A, and the gags from side B.
[audio:https://s3.amazonaws.com/dogratcom/Audio/2012/08/StereoDemo.mp3|titles=Audio Fidelity Records Stereo Spectacular]